You will need to actively prune bad content posted by users on your server or other servers will block you. If you dont have other people on your instance, then

You will need to actively prune bad content posted by users on your server or other servers will block you. If you dont have other people on your instance, then you only need to worry about your posts being so bad that other servers ban you. There is no way to know how many moderators there are on Mastadon servers, as it is decentralized. Also, twitter had large amount of moderators as it's userbase is WAY HIGHER than mastodon. We are talking hundreds of millions of more active users.