Paid signature campaigns are a tremendous part of this forum as regards traffic, we cannot argue with the fact that removing signature campaigns would definitely affect the forum traffic, i don't mean it would run it to the ground, but truth be told, many users wouldn't post quite frequently, and it is fine/normal/acceptable. There is nothing wrong with paid signature campaigns and suggesting to remove it to combat spam is quite too much to ask, spammers hardly ever make it into signature campaigns because they can't rank up due to the merit system, they are in one bounty campaign or the other, thus it is futile hindering the activity of good users who earn from the forum through their good posts, it might combat spam but it would be a pyrrhic victory.