Thats is very true. Then again, what really matters is where the sample comes from. It would have to be a truly random sample to be a scientific poll.
Yep. Since it isn't specified it's hard to have confidence it the results but at the same time 30th is pretty damning. Unless the sample was something ridiculously skewed like disgruntled Canucks fans (unlikely) I'd guess that it isn't too far from reality in the end. My guess is it's a convenience sample which likely attracted people who are *more* interested in hockey than the casual fan, so perhaps it reflects knowledgeable fans more than a proper random sample of the population. Can't say for sure but that'd be my guess.