I had the opportunity to observe a peer that's never heard of Mastodon go through the iOS app onboarding process a week back, and it all went smoothly up until the regional server they chose turned out to block sign-ups with GMail addresses. I later notified the owner of that server and got it fixed but how long did it go unnoticed?
@Gargron :thinktink: that's not an address one should block.. Only the real sketchy ones or at least you're sure it's from a single person or botnet only