I do like the idea and want to help people move.
But it seems like 100,000,000 is a lot of people. That's ~10% of the 1,300,000,000 Twitter accounts.
Good moderation is supposed to be impossible over 1000 people, I read.
So we'd need about 10,000 new servers. Or 1,000 ~10k people servers. A thousand mastodon social servers. A lot of moderation and new moderators.
It would change the feel of the place for sure and timescale feels important too.