As @amolith noticed, Cloudflare joined #Fediverse. Not really, only Tw crossposting. From the discussion (https://masto.nixnet.xyz/@amolith/101918626785187773) I found out the one and only #Mastodon "self-hosting" solution masto.host uses Cloudflare by default (?) It somewhat explains the ~232 (according to @crimeflare ) Mastodon servers.
🧐 Excellent time to remind of last year's research by @leah:
* https://chaos.social/@leah/99837391793032137
A similar research for the greater Fediverse will be very insightful.