It is funny that lots of people talking about banning signature ads have a signature ad in their profile.
99.99% of the people in this forum are into crypto for money, not for scientific knowledge,
so making some additional coins through signature campains feels natural in this context.
Banning the signatures will lead eventually to making the signature part of the post itself (copy-paste in each post) .
It has been done before in other forums, nothing new here.
On another note, one line posts can contain sometimes just as much information (or even more) as a half a page post.
Quantity doesn't mean necessarily quality, and quality doesn't mean necessarily quantity.