Lets look at how the current incident was handled. First, only people who had their information published by the hackers were notified by email. That means that the majority of users were not notified by email. Second, as far as we know, this site is still vulnerable to the same type of attack used on the old server. Third, passwords are still stored plain text. Given the less than stellar response by PM to the recent incident, there is no reason to expect PM to do a good job if it happens again. Therefore, if you are disabling your account, odds are you are better off having your information erased.