Gah, I just woke up at 4am and I don't know why.
Anyways, Eridan is pretty much the ultimate troll. No, really.
While I never saved it, I'm sure you've all seen various images of "Joke's on them I was only pretending to be retarded." That is Eridan.
When he's not socially interacting, he seems like a pretty cool guy. He has neat interests, a confident attitude, and all around awesome.
But get him in touch with one other person, just one, and that all goes down the drain. He thinks the "cool" way to act is to exaggerate his feelings like in a play. His introduction page is very clear on the matter, and he hasn't strayed from it. You have to wonder what kind of life a person leads to become a troll on the internet.
This is it. Awwkward_as_fuck.jpg which leads to ForevverAlone.png. Can't find a girlfriend, can't even find a real friend. Stuck in the acquaintance zone forever.
This is why so many people on /co/ both connect, hate, and laugh at Eridan. You know he's pretty cool, but all the pain he brings on himself, and because of that he's a total loser.