Is that the reason Doge is so high in value on this site?
People are trading their BTC to doge and withdrawing in doge since you can't withdraw in Bitcoin?
correct
On the other hand if you trust Vircurex you can make some profit if you buy Dodgecoins somewhere else, transfer them to Vircurex and sell them to Bitcoin.
Not for me - my trust in online markets went away with MTGox.