It’s meant to roast other anons. 4chan culture is largely similar to a pot of crabs, where the water is social ineptitude and crabs is crabs because carcinization has converted this metaphor as it will all species.
Because it's not real. Porn addiction isn't a medical condition. It's just made up by incels who want sympathy from others for making bad choice, and by man-fluencers who are selling toxic masculinity.
Lack of exercise, poor nutrition, bad sleep, and tons of other stuff that 4chaners probably do can definitely ekad to ED though. So it could just be yet another mixup of correlation vs causation.
His kid is doing really well, too! He's in high school now, his English isn't that great but he's very assertive and confident. Harambe is raising him well. Even that brutal murder of the zoo employee didn't cause so much trauma that Harambe couldn't counsel him through it. They never did catch the killer...