I thought HPV was. Shaming aside, nowadays a good awareness of that kind of stuff saves your ass anyways.
Curb your enthusiasm is what ruined pubic hair for me. I don't want to get that shit stuck in my fucking throat, man. And like anon said, harbors bacteria. Bacteria makes unpleasant smells. You want to huff malodorous smells that's on you. I'm fine with regular pheromones.