I don't really care about signed message. Not sure I understand its importance.
All it proves is that an account was not hacked?
A lot of users won't know what signed messages are under Full Member rank I don't think.
A signed message proves that the account isn't hacked or stolen. You should always request it when doing loans... Otherwise you may end up with a useless hacked account, which you can't sell and the original owner can always get it back.
There is no neg trust from it being hacked!
Therefore it is not hacked, otherwise the previous owner would have left a note.