William Osman comes to my mind for this one. He used to do fun, cute projects, but slowly got increasingly "edgier" and clickbaity.

After he did a 10 minute dive on how he stalked, catfished, harassed, and doxxed (never mind fraudulently getting a signature on legal documents from) this guy for calling him a "loser", I was just left thinking "what the fuck kind of ass are you now".