Useless, there are other exchanges for that,
I'm not aware of any exchange that has USD and more than 10 alts. That's my whole point.
and it will only complicate craptsy's position, thus potentially complicating the users' life a huge lot (just think of exchanges like kraken that don't allow you to even deposit cryptocurrencies without giving them your personal data because of anti-money-laundering government crap).
I actually feel much better trading on a properly regulated platform like kraken or cryptsy. To me it means that the exchange can't just be wiped out or blocked by the government for failing to meet anti-money-laundering requirements.
I'm looking forward to some decentralized exchanges which obviously would be regulation free, but I'm not aware of any that are functional enough to use yet.