it might be nice to see an extended list of raiders [not attackers, maybe to 20 or 30?. that way you know whether you were no. 11 or no.50 [this bugs me a lot especially since i'm usually within reach of the top ten raiders
[granted, it would be a long reach but still...]

personally I think top 10 is fine, some people like to stay off the board permanently but still raid, this way they don't get detected easily. although i guess that's just due to the number of serious raiders in standard.
perhaps vary the list based on the number of players, or better, display the actual ranking instead of the ? since you could technically find out who has raided what in their profiles, but few people would spend that time.

a ranking means you strive to mark your name in the best of that list. ranked 11th to 100th do not count in that race, if you really wanna compete get more raids and make your mark in the top 10.