Actually 7stfap suggest that you do not raise in very loose games on 3rd street, since everybody's calling anyway, so you are in fact just sweetening the pot. When you bet on later streets you will by not having raised early be giving them worse potodds and therefore they will be more inclined to fold

Good advice, but assuming that you are playing against rational (good) players ...

Since everyone is tagging along anyway for a lot of streets I just push hard ... usually there will be three players at the river, and yes sometimes they suck out on you, but since so many tag along, you are getting a good price (And that is at the 1/2$ level, so do not worry about skill as most here are pointing out)