Is Limping always wrong?

[derk]

let me clear up my question. lets say you are in the CO or Button position, and you look down at a bad hand...like......7-3o or Q-7o or 2-4s...bad hands, but if u have a read on ur opponent or you know that you aren't going to be reraised(I mean to an extent because you can't always be right) is it an "acceptable' move to limp here and hope to hit? I'd like to hear ur opinion on this when u have an average stack compared to a large stack. thank you