The Internet tends to attract some really... interesting people, be it GaG or not.
I don't think that American GaGers from the U. S. are a great representation of the U. S. population though, no.
First there's the age divide. I'm just spitbaalling, but I'd guess that 90% of American GaGers are under 25 years old. That doesn't reflect the real world at all.
Socioeconomically, I'd bet that GaG is also skewed much more to the middle to upper-middle class compared to the rest of the country. People here are on smartphones, laptops, have reliable Internet connectivity, etc.
Anyway, those are just two things that came to mind. I'm sure there's more.
Who gives a shit? Every websites gonna have different sub-groups of people, plus GaG isn't exclusive to the US, it's a world-wide website. I could stereotype the women on this site also, saying they're a bunch of ugly, feminist, attention whores, but even if it seems like that after you've been on the site for a day or two, truth is their is diversity everywhere. But again, why give a fuck?
I'm very weird, I'm not too lonely, I'm happy, I like the way I look lol (sometimes), I'm definitely not rich, though I like to pretend to be. I have wealth; Family, friends, fun, spirit, a crush, so I'm wealthy in that aspect. Perverted, hmmm I have fantasies but nothing perverted no. In conclusion I'm not your stereotype, but I'm not the exact opposite either. I'm one of those fifty shades of grey.
But keep telling yourself it's a poor representation, because then that makes it easier to ignore the advice people provide on this site. Eventually your delusions will catch up with you, have fun with that.