The author did not leave Mastodon, they switched to the largest instance:
> Mastodon's biggest problem is that the majority of Mastodon instance administrators are unqualified, and unsuspecting Mastodon users become the victims of shoddy administration ... Despite Mastodon's ambition to be a decentralized network, I can't recommend joining an instance other than the biggest one, mastodon.social.
> Mastodon's biggest problem is that the majority of Mastodon instance administrators are unqualified, and unsuspecting Mastodon users become the victims of shoddy administration ... Despite Mastodon's ambition to be a decentralized network, I can't recommend joining an instance other than the biggest one, mastodon.social.