If anything, liking a game with low ratings make you "hip" and "unconventional".
I'm not sure where the stereotype that "older" folks have refer to any choices or lifestyles reflecting a young person is just them trying to be cool or "hip" comes from. Not a fan of it either.
As for ratings, some people don't care. A large number however do because no one likes to spend loads of money on sub-par games or movies.
That's where written reviews and the number at the end comes to play. It's trusting someone you don't know but that can be said for your heros or people you like politically or even liking people like Howard and trusting their word. And generally while there's bias their fair enough. Fallout New Vegas's for example. I'm not a fan of IGN but atleast they got spot on with that. New Vegas is worth it but comming at tails end of 2010 technologically it was behind. Worst of all even if all the content makes up for it, bugs can never be forgiven. So atleast they got that the game was all about the better writing and all the gameplay inspite of its bugs.
So in the same vein I guess the OP thought Angry Joe putting Skyrim as an anticipated game was...well cool.
He seems fine. No idea about him but apparently he's mostly independant and even if cheesy and campy he's entertaining enough. I remember this guy doing some anticipation skit for RDR and Prototype. Was lolzy.