I am unable to comment on who may or may not be Banksy, but anyone described as 'good at drawing' doesn't sound like Banksy to me.
BanksySome people criticize me for using sources that are a bit low brow (this quote is from 'Gladiator') but you know what? 'I'm just going to use that hostility to make me stronger, not weaker' as Kelly Rowland said on the X Factor.
BanksyBus stops are far more interesting and useful places to have art than in museums. Graffiti has more chance of meaning something or changing stuff than anything indoors. Graffiti has been used to start revolutions, stop wars, and generally is the voice of people who aren't listened to. Graffiti is one of those few tools you have if you have almost nothing. And even if you don't come up with a picture to cure world poverty you can make somebody smile while they're having a piss.
Banksy