Summary: Mastodon has few tools for automatedly fighting spam and abuse so I gave up and made one.

We’ve been swamped with a flood of spam for the last few days. Some loser is creating hundreds or thousands of accounts on undermoderated servers and pestering the whole fediverse with junk. Mastodon itself provides no mechanism for admins to reject statuses that contain certain strings, even though many people have begged for this over the years. And while I could learn enough Ruby on Rails to implement such a feature myself, I’m not confident that it would be accepted into the main project and I don’t want to maintain a fork.