The ad revenue part is true but what do you mean by not harvesting data? Mastodon definitely stores your boosts and likes, it just doesn’t use that data to recommend more content. And the big difference is of course that it is stored on your instance’s server, not a centralized location.
gulag for everybody who thinks this is news. The guy is literally a fascist and we are supposed to be angry about how his humanoid robots look kinda human? who tf cares