Mastodon admins - I've popped a couple of feature requests in for mail domain and IP geolocation checking for account moderation. Both would need to be opt-in as third party services would be needed, but they'd make signup moderation a lot easier! Add a +1 or a comment if they sound useful (or the opposite!)
IP geolocation: https://github.com/mastodon/mastodon/issues/40713
mail domain checks: https://github.com/mastodon/mastodon/issues/40714
@Floppy Why would IP geolocation need a third party? The MaxMind GeoIP database is downloadable (Debian has a package to update it weekly), then that can be queried locally by anything (that's how I block loads of stuff on my server, from both nginx and code).