Doctor Vinnie Boombotz is Rodney Dangerfield's fictional doctor. (Rodney Dangerfield is a late American comedian.) Rodney had a famous joke that I will paraphrase below:

Patient: "Doctor, it hurts when I raise my arm over my head."

Vinnie Boombatz: "Then don't raise your arm over your head."

mattmaroon is thus saying: if scrolling down to read TechCrunch comments hurts, don't scroll down to read TechCrunch comments.