@theymos

After reading the changes for the second time, I would like to suggest this.
The users/posters should also be able to rank up without merit. But it should need a certain number of merit to use a signature that corresponds to the achieved rank.

Why:
1. Because the temptation to make money with signatures is in my opinion the main reason for the spam.
2. Newbies have a hard time getting noticed. I find myself not even reading post of newbies because I think it's all about raking up.