Sef Kloninger ❌👑✓ Add us as a preferred source on Google
🔄 Data last refreshed 4 days ago
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Make a deal with Sef Kloninger ❌👑
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
55
Account age
3 yrs
💰 Suggested sponsorship rate
$40 – $65 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🎁 Free analysisfor Sef Kloninger ❌👑
📊 Post engagement
3
Avg engagement / post
5.5%
Engagement vs followers
Nov 2022
On Mastodon since
🔥 Top post: For the past four months I've been working with the Big Local Ne · 3 likes + reposts
📊 Activity & format
Posting cadence
0.3 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 11 text · 1 image · 0 video.
Follower / following
0.6×
Follows 93 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
🔥 Top post
For the past four months I've been working with the Big Local News team at Stanford to build an English-language interface to US Campaign Finance data. The plan is to arm muck-raking journalists, who don't happen to be data engineers, with tools to dig through this data and find…
I wrote this article describing the project I've been working on for the past six months with the good people at Big Local News. DataTalk is fun to play with, check it out at https://datatalk.biglocalnews.org/
https://biglocalnews.org/con…
I signed this petition to call for banning Flock on the Stanford campus. You too?
https://docs.google.com/.../1FAIpQLSdWBgSKF5PYDq.../viewform
@stanford @stanfordalumni
I've been working with some of the people on Save our Signs. They got a shout out in last wee's Heather Cox Richardson's piece.
https://heathercoxrichardson.substack.com/p/march-28-2026
Excerpt:
Volunteers worried at the potential loss of…
In which our hero writes a fun a little app and tells how AI helped to do it.
https://sef.kloninger.com/posts/leafletter/
https://leafletter.app/
In which our hero has a fun week building pipelines and dashboards for a Data Visualization class without actually writing much code.
https://sef.kloninger.com/posts/claude-dataviz/
I gave a janitorial task to Claude and Gemini. Gemini one-shotted, but Claude was a little nicer to work with.
https://sef.kloninger.com/posts/gemini-claude-cleanup/
In which our hero uses a post about vibe coding to tell a forty year old programmer origin story.
https://sef.kloninger.com/posts/daleks/
Recently my Mac (Tahoe 26.2) had half its disk space mysteriously used. Oleg at @daisydisk pointed me to the solution, broken time machine snapshots.
The fix and note of thanks posted here: https://sef.kloninger.com/posts/daisy-disk/
FYI @…
“Our blood and bones and whistles and phones against miller and noems dirty lies”
https://youtu.be/wWKSoxG1K7w?si=3-DGQ6Zo0R6Ni3W5
This morning my gmail inbox was flooded with a bunch of spam and promotion emails. Usually those are sorted into categories (Promotions, Updates) that I rarely look at. Did categorization or filtering break? #gmail
Some work I've been doing recently with the good people at the Data Rescue Project.
https://sef.kloninger.com/posts/data-preservation/
🐘 Community & instance
Home server
hachyderm.io
A tech & engineering server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Nov 2022
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.
💡 Facts
🗓️Joined Mastodon in 2022 — 3 years ago.
👁️Averages 3 views per post.
📤Posts about 0.3× per week.
🕵️ Fake follower check
Estimated75/100
Good
Credibility score
92%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 92% real, active audience · Low fake-follower risk.
- Engagement (~5.5% of followers engage each post) is around typical for Mastodon.
- Verified account.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
Dad. Board gamer. Engineering manager by trade, up until recently and now I'm on the beach. Dog owner. Trans rights supporter. Passive voice user.
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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Frequently asked questions
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How many followers does Sef Kloninger ❌👑 have?
Sef Kloninger ❌👑 has 55 followers on Mastodon.
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