I'm clearly making long posts and taking it seriously, so when someone sarcastically throws out your points as being PUA sh*t, they're going to get a hostile reaction.
Fred's pretty transparent. He used to be a firm believer that f*****g vitamins can cure hair loss (so I believe he's gullible enough to spend a lot of time, even money, on PUA), I wouldn't be surprised if he believed head massages would do it.
So watch someone mention the idea that environment or diet can influence your hair loss, and watch him absolutely lose his sh*t. Even if it's a very slight mention, he goes ballistic. Why does that hurt him so much in particular? Because he possibly invested his thoughts heavily into it, and presumably felt like an idiot upon the realisation it's bullshit.
If there's one thing about the guy, and it's a consistent theme throughout a LOT of his posts, it's that inferiority complex, often posting about the stupid people around him with no common sense doing stupid things, renting houses, impractical degrees, meanwhile he has it all figured out. The strawman quotes he makes up about people with the little exclamation at the end (nobody ever says any of these things).
So doing something stupid like believing a multi-vitamin will grow hair, or (if my theory is true) you can spend a lot of time on PUA and successfully chat up women in public, this turning out to be bullshit and the fact he bought into it, is very painful for someone like him.
He seeks out those who now believes in such things, even if they don't (like me) he'll twist it so that it seems like they are, and he wants to hammer home how he doesn't believe in that sh*t like the rest of us idiots (allegedly) do.