It would stop signature spam for sure. Not trolls or people shilling their projects.
It will not happen for 3 reasons at least:
- theymos are welcome newbies and would prefer to give people opportunities to earn money here
- The forum has solutions to reduce spam, and effects from spam advertisements, prevent spammers rank up to high positions.
- Members on their sides, can disable both avatar and signature in their profile settings.
1 The owner of this site has mentioned before somewhere that he may remove signature campaigns at some point if they become a problem.
2 Rank doesn't stop people from spamming and any rank can spam. If campaigns accept Juniors or Members getting 1-10 merit isn't hard. There's also a lot of older accounts that ranked up before the system that spam even when they're Hero or Legend.
3 Disabling signatures or avatars doesn't remove the spam. It's still there just without the advertisement which still ruins discussion.