I wear one for all standing lifts, and even some seated lifting where my back is arched or under a load (particularly preacher curls). I have a bad back, and it's not worth the risk to me, to go without every precaution I know of. I don't care if people make fun... I'm more concerned with not making my back worse than other peoples' opinions. I can feel my lower back trying to pop out if I don't wear a belt, and I don't like having to lie on my stomach for a month, popping pills, and needing help to stand up to go to the bathroom!
Charles