I and most observers would agree the more Weiner talks the worse it gets but this is the part I don't get about this thing, if in fact he has lawyered-up (which being a congressman I am sure he already was) most would also assume that the very first thing they advised him to do was to shut-up.
I believe his ego and love for being on camera be it video or as it turns out still photography is the reason for rejecting such wise counsel from his legal team and as such he is his own worst enemy in bringing down himself.