If you can get a good TD they seem to be very popular, but if your'e just going for a generic tower TD then I wouldn't bother, more than enough of those right now!
Well seeing as you cant publish any games there arent very many, but I just made a solo TD which is kind of badass. Better than the shitty ones on battle.net atm. I kind of want to make a td like green td, well the idea of it. But I also want to make an island defense type game, which would be kinda cool.
Finally finding about some of the bots that are flooding the users online - bytespider apparently is a huge offender here - ignores robots.txt and comes in from a ton of different IPs
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.