I think OP is talking about being on the Button.it all depends on your position at the table and your hand. if you see something limp need to go all in with a wide range of hands. if you raise before the act on the environment.
:dito:Limping is not good, if you feel you hand is not strong enough to open raise or make a rol, then fold preflop. .
:dito: ExactlyOne would think they're thinking that there's a good chance you are stealing from BTN (unless you've never been opening from btn) so why limp in that spot with a good hand? (especially if they are 'very' aggressive... as in, they'll be playing back at you).
You will only ever trap yourself limpingI paid that price today... I limped KK UTG and the big blind flopped trips on the flop. I took a quick exit from the MTT. (We were both deep stacked too LOL)