No, he wasn't "soul farmed" by Thresh, i'll tell you the short story.
I used to be friends with this guy, let us call him, Pedro, because everything else is mainstream.
Any way, like 8 months ago, a buddy of mine invited Pedro to LoL, Pedro was the gung-ho kind of guy, that one little fella that never gave up, he was always optimistic and well mannered guy.
We played for a few months on my usual premade team, and we invited him a lot, then we went out to study like 3 months after, our team split and Pedro went to game on his own.
Up until recently, i played with Pedro, and he was angry at everything, even to the point of reporting someone who had a bad game, blaming someone else when he died, nad worse of all, he was maining Darius and Katarina... (yeah, you who have played this game for a lot, you know what does this means).
Anyway, last game, i was playing with him as nunu, i was joking with another friend of mine so my build was kinda goofy, Pedro was playing as Katarina, he then did stupid things, like diving w/o much life and with cd on shumpo, and on top of it, started to blame me, he even had the balls to pm me saying how good he was, and how much of a failure i was, anyway, well, he was too busy trying to teach us how good he was and trhew the game, i just muted, reported and erased him from my buddy list.
I mean, what does this game has, to make a gung-ho dude, become a member of the jerk-crew? maybe the toxic part of the community made a jerk out of him?
Tl;dr: Thresh got so much soul, that James Brown was jealous.