You do, as overlord (or if you share, your cabal). Hopefully, since it is your site, you will be sensible. If you aren't, then you're left with a cesspool. Even

You do, as overlord (or if you share, your cabal). Hopefully, since it is your site, you will be sensible. If you aren't, then you're left with a cesspool. Even today, dang and gang actively shut down comments that are very bad. This is, imho, A Good Thing™.