Assuming the respondents are uniformly randomly chosen, it takes surprisingly few people to get a pretty high confidence interval. I'm not convinced that the respondents are uniform, but I expect that there is a sufficient distribution that the results are still interesting. 3x vs. 1.5x seems like a small difference to me, but I am not an investor or user, so....
Seeing as I went 16 moves against Kasparov as a complete noob to chess, does that make me better than Bill Gates? My programming ability and checkbook seem to disagree, however. :/