A lot of people are saying the pay rate shouldn't be the same for all members.
Have you considered the number of posts made in the past? If I wanted to join, you'd pay me the same for my main account as you'd pay for
LoyceMobile, despite the fact that my main account has 24 times more posts, and thus displays the signature 24 times more.
I think the main reason to pay more for higher ranks is that you can put real links in higher rank sigs (I think Jr and Member cant put links, just text, and for google this makes a difference). Higher ranks allows better visibility also.
I never thought much about number of posts. Do spammers have higher than normal number of posts?this could be an interesting statistic. I think more veteran users usually have a higher number of posts.