The lists of ban effects or lack of effects are both for personal journals and communities, but do not appear to be ordered such that the comm-only ones are separated.
I'm thinking particularly of "Prevent the user from joining a community, if not already a member." -- that's for when someone is banned from a comm, right, not for a comm you maintain and you've already banned them from your personal journal? I would put that at the bottom of the list and mention that it's for when they're banned from a comm -- or just put in a link to 84 and list the comm-only effects there.
20 already links to 84 at the bottom, but should do so at the top as well.
84 has no link back to 20.