The 27-year-old probably worked at a chain game store, neh?
It's his job to be able to give at least a vague positive opinion about what he's selling to you. There are only two varieties of people who get hired by game stores: attractive females and moderately game-savvy males.
It's not particularly reasonable to expect him to study and obsess over games he doesn't play... after all, he's just doing his job, and probably not making very good wages for it anyway.
Furthermore, it's unreasonable to get upset at somebody for not being a specialist and historian at something in which they have only recently gained interest (recently in terms of the history of the topic, not in terms of the individual's personal history).
Heck, it's unreasonable to get upset at somebody for not knowing the fine details of things they take for granted.
Everybody I know in person lives in some variety of house or apartment, but I can count on one hand the number of those people outside architecture school who know what a soffit or a cripple stud is.
They see soffits every day, but why would they bother looking up what it's called?
It's good enough for them that when they go indoors, they aren't standing in the rain anymore. Specialist details don't even register to them as having importance.
Maybe when somebody plays a game, they're just playing to enjoy it, and that's enough for them. Maybe you're specialist enough at it to care about those details and the topic history, but for the "layperson gamer", it's more than sufficient that the game works on their game system.
When you get upset about it, it's
entirely a problem of your own perceptions, and it's not a flaw on the part of the layperson gamer.
In summary: the game store guy isn't an expert, and most people are content enough not to want or need to be experts. You, as specialist enough to care, are the exception to the rule, and any perceived problems are entirely your own invention; this is a psychologically elitist action, and you use it to feel superior to the mainstream layperson gamer. It's not a way to make friends, influence people, or win sympathy to your views.
As for Rickrolling... I enjoy the song itself, especially the darkly entertaining mashup with Nirvana's "Smells Like Teen Spirit". When I'm Rickrolled, I enjoy the chance to hear the song again, since I haven't heard it on radio ever since Rickrolling became popular.
I have a tendency in moments of idleness, I've Rickrolled Free in realtime, whistling, humming, or singing Astley's song. In another forum I frequent, I've generated a small trend of "Whit-rolling", in which the user posts school research papers written about Walt Whitman into completely unrelated threads, derailing them with TL;DR.
I think of Rickrolling as the great leveler on the Internet: nobody is immune to it, unless they happen to be both blind and deaf, which would naturally defeat the purpose of accessing the Internet. It's integral to Internet subculture, and total newbs and digital veterans alike can appreciate this commonality, which simply doesn't exist in the newest memes (which are newb-exclusive and annoying to old-timers) and the oldest coder-memes (reserved for code jockeys and basement-dwellers, a foreign tongue to the modern teen-ager).
...but deconstructing OP rants is so last decade, so let's act like this post never happened, eh? ^_^
EDIT: Ooop, ninja'd by Deadman.