But I'm too lazy to go find them so I kind of suck.

Yes, you do. Actually, what it probably means is that they don't stick out at us (as reader or writer) so that's a good thing.

Irony is like, the greatest truth.

I really like the "like" you inserted. (Have you ever read that Languagelog article about like as a hedge word?

Anyway, yes, I think that when we are confronted with the connundrum of how two un-like things can be compared, the comparison is perhaps especially fruitful because of the contradiction. It potentially adds a layer of meaning, because rather than agreeing that, yeah, both the sky and your eyes are blue, if you tell me my eyes are as blue as that apple I'd have to figure out whether you were being a smartass or whether that apple has some quality of blueness to it.

Which is a really bad example. And not, you know, irony.