Lately I've come across a number of gatekeeping assholes where i had to bite my tongue given the situations i was in. They can take their trophy for being so (ahem) above & beyond and just fuck off.
What are gatekeepers? In the best way i can explain, they're people who disregard and/or belittle your position because you did not meet a certain standard, all the while elevating themselves because they meet the standards they've set.
For example - If you complain 90F degree weather is too hot for you, a gatekeeper will act like 90F is nothing because he/she lived in Arizona where the temps are constantly 110F-plus, therefore implying you're weak for complaining about 90F
Another example - a hard nose gatekeeper will separate the legitimate from amateurs based on their own standards - such as, "real gamers" don't play Minecraft or Mario because those are pansy games. Only "real gamers" play hardcore games like Call of Duty, blah blah blah.
Seriously, they're not as awesome as they realize, they're actually more like a fucking douche