Unfortunately, I'm a little unfamiliar with some of the meme jokes, so I admit I'm a little lost with this one. Is it deliberately written incorrectly with the troll face as a joke? It's sad that I have to ask, I know.
The trollface is usually associated with the idea of "baiting" someone by posting a provocative statement that they are likely to react to (usually to get them angry).
It seems like you picked it up okay. The trollface is there to indicate that it's fake, joking bait rather than actual bait.