I'm trying to write a trademark policy: https://gist.github.com/Gargron/8287a6d961397ad3b877d6c0cfa8352e But I am not a lawyer and haven't done this before. Feel free to give me some feedback. I hope the spirit of the policy is clear - tl;dr use Mastodon trademarks for Mastodon stuff, don't pretend like you're official endorsed though, don't sell faux-official merch without permission, don't name your company stuff like "the Mastodon company"