Sorry for this nub question...

When I started training I was using a belt for every set of squats. Some guy came up to me and told me that that really takes away from making my back stronger. Since then, I have blindly followed his advice. For the last 2 years I havent even put one on. Not even during maxes, and so far, my back hasnt had any issues handling weights during squats although I do high bar olympic squats.

Should I be using it sometimes or should I just forget about it?