Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
Personally I think the chess icons for membership level are a great idea. Even IYT has the red symbol vrs no symbol to distinguish paid members from non paid. Membership does have its perks. :) No matter the symbol used, people would know the difference. Most, I'm guessing, don't think much about it.
This site is well worth supporting. It's a player's site. If the members want it, and Fencer can impliment it, it's a done deal.
I don't mean to presume anyone's financial situation. But, for just ten bucks you can have 6-months and give membership a try. 18 bucks a year gives you a Knight level for an entire year. Save up, beg, borrow, (don't steal) give hints for birthday presents and of course Santa could leave you something in the form of a BK membership this year too (if you're good).
Now maybe Fencer could add a Brain Bishop account and charge $14 for six months (13 is an unlucky number) and $22 for a year. These numbers are halfway in between the Knight and Rook fees. There could be a limit of 100 started games and maybe 3-5 tournaments. This type of membership might be good but it may have drawbacks. I don't use the full benefits of a Rook membership but the Knight membership is not enough. The Bishop membership would meet my needs (except that I am currently in 14 tournaments...so...). The drawback is that if Rooks downgrade to the Bishop membership....well, you get the idea. I'll bet Fencer thought of this already?