If you say everyone here has a signature code on their profile, you are wrong, but the majority of all the active members here wear signatures on their signature spaces, and most of them who don't wear signatures might be a result of not having a campaign yet. But still, there are members who, since I joined this forum, have not worn signatures, and they are even more active than most of us who are advertising a particular brand.
 
There is also no doubt that the traffic and audience here will reduce if the signature part of the forum is entirely disabled. Many are here for knowledge, as they claim, which is also an undeniable fact because there is a lot of information here and more to learn than we can imagine. The earning part is also one thing that keeps people going, and most people have dedicated their time here on the forum as a result of the double benefit they get, so if one of these is cut down, we will definitely see a reduction in active users.