I'd be more than happy to see a perma-ban of sig/profile campaigns/promotions, it would certainly rid this forum of clutter/spam - not to mention scams/shitposters & pointless arguements over nothing but getting paid a few bucks for doing so. I'm all for it.
That's not a potential solution probably, otherwise, theymos would do it long ago. I doubt 10% of the current active people/activity would be active once sig is disable.