I would definitely consider bringing criminal charges and at the least consult a computer expert on how to stop this. I enjoy reading some of the comments here but am at the point of deleting my Chess.com bookmark because the spam is just too much to take.
A solution to the spam
Sort:
Why don't you just disable the posting priviliges of a account until 2 weeks have passed since a account is created
Example :
Bob creates a account on January 1 , 2014
He cannot post or create threads until January 15,2014 ( He can still play games, on Jan. 1 , only the posting priviliges is restricted)
I am sorry but i just find it ridiculous that spamming is really easy on this forum.