Great idea! Might be a bit hard to make happen though, since there would have to be a checking system in place to prevent fraud. Not quite sure how they would check that, other than having a locked IP address for an account, but that gets frustrating for both sides very quickly. Hopefully they can figure something out, though!
Family Memberships
Maybe if everyone that read this post said "Please!" they would get the idea just how popular it could be and how much it might actually increase participation.

PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE
PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE
PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE
PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE
PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE
PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE
Would you please consider offering family memberships to make it affordable for those who have more than one chess enthusiast? That would be a great benefit in time for this Christmas. Also how about a discount as well for those paying for more than one membership at the same time?