Watching it way too much and giving up on having relationships with real women. Shutting yourself in, tuning out and jerking off 3 times a day. Letting it warp your perception of sexuality.
Isn't that self-abuse....literally.

You sure "hit the nail on the head" with your comment about warping one's perception/expectations. Recently, I attended an event where a male porn "star" was auctioning off his underpants for charity. Although I never saw him on video, he must be a real disappointment in person to those who have. Although he obviously works out, his butt was misshapen and fake. His junk, which he flashed a lot, was abnormally big and probably bloated with silicone. To put mildly, he was larger than life and looked like a sad sex clown. -Not being judgmental or anything. LOL!
I watched a documentary recently about the making of porn. Pretty much every bit of it is fake. What looks like amazing staying power is shot in short segments. Guys inject their penises with drugs that make them look erect but in truth, it not a real erection. Those far shooting multiple cups of cum are mechanically ejecting out of a tube that's hidden from the camera.
What is truly pathetic is that folks who don't know or don't want to know better are buying this crap. All that does is make them feel inferior.