User blog comment:BeholderofStuff/Pure Evil Proposal:The Cannibal/@comment-4002949-20190725213458

shock song made for exploitation means is the first danger sign.. secondly the Cannibal is verging on "too insane to count" as he is literally addicted to killing (doesn't always stop someone but unlike Joker the Cannibal is not hinted at being sane as the song is his thoughts, "I know I should not do my thing but you look so damn mouth-watering" <-- he can't control his urges.. Joker has shown he largely has control and does what he does for "fun").

plus we don't know specifically how far he goes - simply being a serial-killer doesn't grant PE status.. it just makes them darker than your average killer.. yes a lot of serial-killers are sociopathic and thus irredeemable but a PE is likely even *worse*.