It would be helpful for some kind of meta post to go on "useful posts."
There have been quite a few instances where a new user joins, they either decide they don't like their username or some other circumstance comes up and they decide to make a new account since they can't delete their current one. Then they end up getting caught by one of us not realizing that having second accounts isn't allowed. It would be good just to prevent people from running into unnecessary trouble down the road.
