I don"t think it"s because of the varying sites - I think it"s the large number of games and not much about them on the forum, so people think everyone else is not playing them. I"ve had a look a few times, saw there was no-one registered and wandered off again. Others are probably doing the same thing, whereas if there seemed to be some interest, others would join in. Fewer games, but more promotion of those, might do the trick. Still lots of time though.