Sorry, I can only take so many YEARS of bitching and moaning about the same shit before I get sarcastic. You've only had to put up with it for 3 months, so you probably have some patience left. If he had added anything new, I wouldn't complain, but every point he brought up has been beat to death.
Apology not accepted. You should learn to control your nerd rage. It's offensive. The fact the lag continues after 3 years does open up new questions. It's clearly a fixable problem given the money they have. Why they won't bring in outside help to fix it is troubling.
There is a cool feature called ignore. There's also a cool feature called, "keep scrolling". Your mouse probably already has it. If it doesn't, they're pretty cheap. Look for the newfangled "scroll wheel". It's insane. It lets you scroll through the page really quickly. Skipping any shit you don't feel like reading. Crazy huh?
Next time you get REALLY REALLY upset at a post, take a time out. Here's 10 things you can try to make life on the internet a lot easier.
Mayo Clinic - Anger management: 10 tips to tame your temper