I considered not posting this because it can give some bad ideas to some newer players, but then I figure there IS a beginner section, and this ain't it. I'm exploring my less agro side.

Sometimes it's ok not to protect against draws.

Like when you're at a table full of taggs who will fold their draws on a Td9c2d board to a 3/4pot bet.
This is opposed to tables where the guy with QJo calls you down to the river because of the what-ifs.

Or when you're first to act on the flop with AKo and the board is As9s4d and it's you and only one or two other players. If the guy with AQ decides he's good when the turn blanks, you can make a lot more money I think.