I haven't drawn Rake in a long time. I'm sorry Rakey!
Anyway, this is based on my headcannon about the rake. I imagine Rake once having a master, whether it was Slenderman or some old forgotten monster I don't know. He was probably created by the same monster that was his master. He probably wasn't very useful at first since he was young and basically thrown into the world and ordered to do stuff he had no idea about yet. Therefore he was yelled and screamed at constantly being called "Useless" or worse. I don't think he'd remember much of the verbal put-downs but I bet they leave some sort of residual impression.
Rake (c) Creepypasta