Forum Suggestion - e-mail change message
So I've just spent 20 minutes trying to figure out why a Moderator would remove my right to create/post threads. It could be the only possible reason considering I've already validated my account. Then the thought crossed my mind that since I changed my e-mail address I may need to revailidate. I check my e-mail and, sure enough, there's an e-mail requesting validation.
So my suggestion is thus, Have it give you a message when you change your e-mail (or when you're on the change password/e-mail screen) or even a private message that says you need to revalidate your account with the new e-mail address.