FediBlock Tip
A little tip for Mastodon* moderators and admins:
If you see a #FediBlock report for an account, go to the account, click "open moderation interface for @..." and hit "refresh".
Very often the account will already be blocked on its server and refreshing will delete it on your server. You can then "delete data" to remove the rest of the traces of the account.
If it is not blocked on the remote server yet and you think it should be, then report it. Chances are nobody reported it and forwarded the report to the remote server yet.
*The refresh option probably exists with other Fediverse software too, but the way to get there might be different.