RCU locks posts that are older than month or so, and authors can not edit them any more. I understand the idea to not allow to screw up the forum when someone changes his mind or get pissed, but on the other hand some threads are live for a long time and some old posts may need to be editied if author needs to update the information (in example replace dead http links).

Maybe Aeronut needs to contact moderator, and he (moderator) can unlock the post for editing.