I think you are wrong. as long as you realize that playing "aggressive" does not necessarily mean playing trash you should not have a problem playing an aggressive style at microstakes games.

Most bluffs arent worthwhile at the lower limits, but that isnt to say that bluffing should be out the window. You just need to pick your opponents. There are weak-tight players at microstakes too, so bet into them. There are more calling stations too, so bet into them with a hand.