🤝
Make a deal with Alcides Fonseca
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
146
Account age
5 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 Alcides Fonseca
📊 Post engagement
1
Avg engagement / post
0.7%
Engagement vs followers
Oct 2020
On Mastodon since
🔥 Top post: New blog post: https://wiki.alcidesfonseca.com/blog/age-verifica · 2 likes + reposts
📊 Activity & format
Posting cadence
0.36 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 12 text · 0 image · 0 video.
Follower / following
0.5×
Follows 299 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
Simon Willison has detected another AI inflation point. My thoughts on its implications on the economy of tokens: https://wiki.alcidesfonseca.com/blog/llm-april-inflection-point/
arXiv does not want to host slop: https://wiki.alcidesfonseca.com/blog/arxiv-introduces-penalties-on-slop/
Why TUIs are making a comeback.
https://wiki.alcidesfonseca.com/blog/why-tuis-are-back/
Why you probably do not need git worktrees: https://wiki.alcidesfonseca.com/blog/you-probably-dont-need-git-worktrees/
I needed z3 Python bindings in the browser for demos. Claude built it in 10 minutes of my time, and it's now available: https://wiki.alcidesfonseca.com/blog/z3-python-in-the-browser-in-10-minutes/
Unfortunately, I did not learn about that many new bands in 2025. I would appreciate any new suggestions from my followers! https://wiki.alcidesfonseca.com/blog/2025-in-music/
I'm all for an European Sovereign Tech Fund, that allows one to host their online lifestyle (and businesses) completely within Europe and European companies: https://wiki.alcidesfonseca.com/blog/eu-opensource-funding/
I am looking for 1 or 2 new PhD Students for our dual-degree program with CMU (3 years in Lisbon, and 2 in Pittsburgh). Ping me for more details or, if you're in Singapore this week for SPLASH, let's meet! https://cmuportugal.org/media/app…
Peer Review is dead! https://wiki.alcidesfonseca.com/blog/peer-review-is-dead/
I'll be spending next week in Singapore, attending SPLASH with Paulo (paper at OOPSLA on LiquidTypes for verification of #ROS architecture) and Catarina (usability challenges of Liquid Types at HATRA). Hit me up! I also appreciate tips on…
"To provide some sense of scale, that means the equivalent of about $1,800 per person in America will be invested this year on A.I." https://marginalrevolution.com/marginalrevolution/2025/10/sentences-to-ponder-133.html?utm_source=feedly&u…
🐘 Community & instance
Home server
types.pl
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
On Mastodon since
Oct 2020
An OG fediverse account from Mastodon's early years — a long, established presence.
💡 Facts
🗓️Joined Mastodon in 2020 — 5 years ago.
👁️Averages 1 views per post.
📤Posts about 0.4× per week.
🕵️ Fake follower check
Estimated66/100
Good
Credibility score
89%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 89% real, active audience · Low fake-follower risk.
- Engagement (~0.7% of followers engage each post) is around typical for Mastodon.
- Established account (5+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
http://alcidesfonseca.com
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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17%
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17%
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15%
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15%
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13%
Hassan Habib
10%
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Frequently asked questions
How much does Alcides Fonseca charge for a sponsorship?
Alcides Fonseca hasn't published fixed prices yet. Send a proposal through SocialDB and agree terms directly — your payment is held in escrow until the work is approved.
How do I contact Alcides Fonseca for a brand deal or collaboration?
Send a paid deal or collab request right here on SocialDB — we notify Alcides Fonseca, and once they accept, your payment is held safely in escrow and released when the work is approved. You don't need to track down an email.
How many followers does Alcides Fonseca have?
Alcides Fonseca has 146 followers on Mastodon.
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