It's defamation and if this gained any traction within this year he could actually sue Porky's corner for posting the video on his channel. There's a one year window to do it from when the original statement was made. I don't think many people care or watch porky's youtube channel so he's probably safe. Youtube only remove videos if something went through the court if it's concerning something like defamation of character. He could probably get the video removed for harassment and bullying but i doubt he's even watched it or cares. It's likely Coldwell doesn't care maybe because the allegations aren't true or won't ever be able to be verified anyway. Just a baseless accusation with no evidence. It would be a waste of money to try to make a statement and sue a nobody over some video hardly anyone has watched unless it actually affected his life and occupation. I mean if the person or persons accusing him of this were generally affected mentally they would attempt to seek help and make a statement to the police. I don't think they would just go on porky's corner looking to slander his name on a public platform.