As an occasional drug user myself, of course. I always wanted a girlfriend to smoke weed with, it's a lovely bonding thing for me. I don't like cocaine though, so I wouldn't like a girlfriend to use that regularly, and obviously no smack, crack or meth. A nice girl to slip an E with and dance the night away, or cuddle up and take some hallocinogenics with though, that I would definitely consider.
I'm predicting the poll results are going to show guys why you shouldn't tell potential girlfriends about drug use early on. I have a long term girlfriend who doesn't do drugs, when we were first seeing each other she text me to ask what I was doing, I thought I'd be honest and say I was smoking weed. She admits she considered stopping seeing me because of that- not because she had a real problem with occasional drug use, but because she now imagined me as a stoner waster who got high all the time.