Can you imagine how many members would no longer post here if theymos decided to remove signatures, thus ending signature campaigns. What would happen to the forum then? A huge proportion of members here are present because of the incentive (signature campaigns) therefore it would be interesting to see how such a scenario would play out.

Yes, it is highly unlikely theymos would ban signature campaigns but it is not impossible to do. As long as he decides taking a particular course of action is in the best interest of the forum, he will probably do it but thankfully he has not indicated anything negative towards signature campaigns as far as I am aware.