@thisismissem let's start with closed registrations on the biggest instance out there, which happened to be the source of three major spam attacks over the last 10 days.
I'd like to see a fedi where the biggest instance is no larger than 5% of the active accounts; m.s currently is at ~13%. That's simply dangerous.
Defederation is not the solution, but it is sometimes necessary with badly moderated instances.
@rysiek @thisismissem @pearlbear It's not dangerous: While there are a lot of accounts in number, there are very few in influence. Most community members are elsewhere. Raw numbers is far from a useful measure, especially when a lot of them are bots.