What about introducing a signature link limit before let's say 15 posts? And also a limit of posting links before the user has 10 posts? The reason I'm suggesting this is because I see more and more people:

  • posting, spamming the forum for their signature links
  • posting, not using signature links but posting the links in their thread
  • people offering services that just make 1 post to promote their service/product and never turn back

What's your opinion about this?