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John Carlsen 🇺🇸🇳🇱🇪🇺

John Carlsen 🇺🇸🇳🇱🇪🇺

Mastodon @johnlogic@sfba.social
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🔄 Data last refreshed 5 hours ago
🤝

Make a deal with John Carlsen 🇺🇸🇳🇱🇪🇺

🔒 Paid proposals held safely in escrow — released only when the work's approved.

📣Sponsored postOne disclosed post (toot) with your link and message. $12→ 🧵Sponsored threadA multi-post explainer or story — the fediverse rewards dept… $30→ 📦Product seeding / honest reviewSend me your product — I post a disclosed, honest take. Auth… $16→ 📌Pinned sponsored postA disclosed post pinned to the top of my profile for the mon… $36/mo→ 🔗Profile link (bio field)Your link in one of my profile metadata fields for the month… $18/mo→ 🔁Boost packageI boost (repost) your account's toots through the month — di… $24/mo→ 🏛️Instance / community sponsorshipSponsor the server I run — a sponsor line in the About/rules… $30/mo→ 🤝Mutual boost collabWe boost each other across instances — a value swap between … Swap→ 🎬UGC HireBranded content for your own channels & ads from $50→ 🎙️Podcast guest spotInvite John Carlsen 🇺🇸🇳🇱🇪🇺 onto your podcast (~45 min, remote) $28→

Every booking is a normal escrow-protected deal.

Followers
1.2K
Account age
3 yrs
🧰 Free analysis for John Carlsen 🇺🇸🇳🇱🇪🇺
🕵️ Fake follower check 📊 Engagement rate 💰 What they charge

Known for

I just committed a 1% down payment to buy a Slate #ElectricVehicle and secured my delivery window. Here's a rendering with the straight-back (vs. fast back) SUV kit I expect to get, too.11 views I just committed a 1% down payment to buy a Slate #ElectricVehicle and secured my delivery window. Here's a rendering with the straight-back (vs. fast back) SUV kit I expect to get, too. Today as I walked along a path in Cupertino, I was reminded of the 1968 film Planet of the Apes, and learned that it was released 58 years ago this week and co-written by Twilight Zone creator Rod Serling.11 views Today as I walked along a path in Cupertino, I was reminded of the 1968 film Planet of the Apes, and learned that it was released 58 years ago this week and co-written by Twilight Zone creator Rod Serling. Anna's Hummingbird while hovering to feed from corral bells flower Sunnyvale CA USA just now #Fairphone45 views Anna's Hummingbird while hovering to feed from corral bells flower Sunnyvale CA USA just now #Fairphone4 When I use LinkedIn, I use its Web interface, but only for a short time until its pop-up message interrupts my scrolling with a nuisance nag to install its app instead. Rather than install the app, when I see this message I close the window and stop using LinkedIn. #enshitification3 views When I use LinkedIn, I use its Web interface, but only for a short time until its pop-up message interrupts my scrolling with a nuisance nag to install its app instead. Rather than install the app, when I see this message I close the window and stop using LinkedIn. #enshitification

📊 Post engagement

4
Avg engagement / post
0.3%
Engagement vs followers
Mar 2023
On Mastodon since

🔥 Top post: I just committed a 1% down payment to buy a Slate #ElectricVehic · 11 likes + reposts

📊 Activity & format

Posting cadence
0.65 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly images
Recent: 0 text · 12 image · 0 video.
Follower / following
1×
Follows 1.2K back. A more reciprocal / networked account.

Recent posts

View on Mastodon ↗
🔥 Top post I just committed a 1% down payment to buy a Slate #ElectricVehicle and secured my delivery window. Here's a rendering with the straight-back (vs. fast back) SUV kit I expect to get, too. ★ 11
When I use LinkedIn, I use its Web interface, but only for a short time until its pop-up message interrupts my scrolling with a nuisance nag to install its app instead. Rather than install the app, when I see this message I close the windo… ★ 3 This week I had a new laptop computer thrust upon me; I believe it's a Dell 16 Plus Laptop like the one in the picture. I quickly found that I can't type on it. "Why?", I wondered. Dell squeezed in a numeric keypad; in doing so it made all… ★ 3 Ro Khanna speaking at a town hall event on 25 April 2026 ★ 3 Anna's Hummingbird while hovering to feed from corral bells flower Sunnyvale CA USA just now #Fairphone4 ★ 5 postcard from Ethan Agarwal attacking Ro Khanna: The day after 4/20... ★ 2 Nice presentation by Joshua Wise @joshua tonight at the Mountain View Reverse Engineering Meetup about using Wireshark and writing data dissectors for it. ★ 1 Today as I walked along a path in Cupertino, I was reminded of the 1968 film Planet of the Apes, and learned that it was released 58 years ago this week and co-written by Twilight Zone creator Rod Serling. ★ 11 President Donald Trump looks up toward the Solar Eclipse [for a third time staring directly at the Sun without eye protection] while standing with his wife first lady Melania Trump and their son Barron, on the Truman Balcony at the White H… ★ 2 Today IEEE dedicated a milestone celebrating 40 years of field-programmable gate arrays (FPGAs) at AMD's Xilinx campus in San Jose. Among many others, I met AMD's CEO, Dr. Lisa Su, and mentioned that I especially appreciate her past work o… ★ 2 Tonight I enjoyed meeting @Cdespinosa in person at the Computer History Museum event for Apple at 50. I took a few pictures too. ★ 3

🐘 Community & instance

Home server
sfba.social
A the SF Bay Area server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.
On Mastodon since
Mar 2023
An established account with real history on the platform.

💡 Facts

🗓️Joined Mastodon in 2023 — 3 years ago.
👁️Averages 4 views per post.
📤Posts about 0.7× per week.

🕵️ Fake follower check

Estimated
66/100
Good Credibility score
89%
Real Real audience
Low Fake-follower risk
High Data confidence
  • Est. 89% real, active audience · Low fake-follower risk.
  • Engagement (~0.3% of followers engage each post) is around typical for Mastodon.
  • Established account (3+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Silicon Valley native Dutch-American, computer nerd w degrees (BSCS, BBA, 5 AAs), pilot, HAM radio operator (+W6WX trustee), IEEE Senior & CAP member Past: Atari, IBM ARC, Sony, game dev (mostly NES-PS3), adjunct prof, robots, railway equipment, and rockets; online since 1985, Unix/Linux user since ~1990, Texan 1993-2009 Likes science, music, social dancing, cats, privacy rights, people (E Pluribus Unum), democracy, equality, "good trouble"; dislikes religious hypocrisy and hate

📸 Gallery

I just committed a 1% down payment to buy a Slate #ElectricVehicle and secured my delivery window. Here's a rendering with the straight-back (vs. fast back) SUV kit I expect to get, too. When I use LinkedIn, I use its Web interface, but only for a short time until its pop-up message interrupts my scrolling with a nuisance nag to install its app instead. Rather than install the app, when I see this message I close the window and stop using LinkedIn. #enshitification This week I had a new laptop computer thrust upon me; I believe it's a Dell 16 Plus Laptop like the one in the picture. I quickly found that I can't type on it. "Why?", I wondered. Dell squeezed in a numeric keypad; in doing so it made all the keys smaller. This isn't great for me, a fully-grown adu Ro Khanna speaking at a town hall event on 25 April 2026 Anna's Hummingbird while hovering to feed from corral bells flower Sunnyvale CA USA just now #Fairphone4 postcard from Ethan Agarwal attacking Ro Khanna: The day after 4/20... Nice presentation by Joshua Wise @joshua tonight at the Mountain View Reverse Engineering Meetup about using Wireshark and writing data dissectors for it.

🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

editionsFLBLB editionsFLBLB 17% Aaron Brick — אהרן בריק Aaron Brick — אהרן בריק 17% TrekLongIsland TrekLongIsland 16% Dalipas 🏳️‍🌈🇬🇹🇫🇷🐢🇵🇸 Dalipas 🏳️‍🌈🇬🇹🇫🇷🐢🇵🇸 16% sph/nx sph/nx 14% Third Foundation Third Foundation 12%

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