That's definitely true, and I'm sure it happens a lot. What's weird to me, then, is the frequency of crappy submissions getting enough upvotes to hit the front

That's definitely true, and I'm sure it happens a lot. What's weird to me, then, is the frequency of crappy submissions getting enough upvotes to hit the front page while the inevitable good submissions slip through. (This, obviously, is bigger than my own submissions, which I'm not particularly interested in seeing on the front page given that I've already seen them -- I'd like to see all the good submissions, and less of the crap.)