Just signed up to test it all and fund bugs.

- restrict the AR system account (user_id = 0) from being able to recieve messages from users and webmasters, so it doesn't clutter.

Also the add friend / block / delete thread options should not be allowed if the selected conversation is with the system AR account. We don't want users being able to block or silence the system account.

- messaging system shouldn't show reply to the intro text in conversation panel.

- Perhaps we should add a shrinkage/expandable wrapper and button for the messages, similar to what exists currently for the conversations .

- go back button on profile.php is going back to itself, perhaps due to a form being submitted? Mobile anyway.

- go back doesn't work on send_message.php either, I'm confident now it's to do with the form submitting altering the state.