...why would it be funny?
all it is is a repetition of memes that 4chan adores. there are almost no deviations (most of the joke is that the meme plays itself out, with two exceptions being Tay Zonday pulling a gun and saying "CHOCOLATE PAIN BITCH", a decent joke, and the dramatic gopher blowing up people's brains, an incredibly obvious joke) and the humor is EXCLUSIVELY on if you recognize a worthless internet meme.
taking that into account with the incredibly stupid stance they took to the writer's strike and it's the worst episode by far of the season. they have to try to beat this one, probably with some OBAMA'S A NIGGER shit.
I suppose it was just a bunch of 'in jokes' for youtube users, and that it did just reference them, but you know what? I laughed... and thats pretty much all I care about... I guess you could say I'm over simplifying it... anyway I thought the fight they had was the funny part, not necessarily the unveiling of them on the show.
comment on this episode: Tonight's episode was probably the best of the episodes for this season thus far.