Great read from HN. tl;dr - modern "mainframes" are owned by big tech companies with same ramifications..
http://www.winestockwebdesign.com/Essays/Eternal_Mainframe.html
Un'istanza mastodon antifascista prevalentemente italofona con base a Bologna - Manifesto - Cosa non si può fare qui An antifa mostly-italian speaking mastodon istance based in Bologna - About us - What you can't do hereTech stuff provided by Collettivo Bida