I just read they decided to default it to off. They should remove it entirely imo, but with this move, it costs IT departments $0 and 0 hours of their time to worry about.
I think business + government + education usage is more important for them than personal, and as long as this costs them nothing, I doubt it makes a dent in anyone's plans. Could have been an apocalypse if defaulted to on though.
I don't think Steam supports any sort of sliding scale system and they have a price parity rule which would be broken by offering it elsewhere
I think it shows some of the strengths of federated networks. If the owners of a small proprietary social network ghosted their project, it would take a huge effort to try to replace it, which would be insurmountable for many communities. But in this case, a community can fork onto a new server pretty quickly and seamlessly.
I'm glad they're adding support, but I also feel like this is a hard one to sell to the general public. If it creates a better experience, word will get around about it, but going on stage and talking at length about how there's a new messaging protocol would have been a challenge for non-technical viewers