From my experience...
I have back cued at home on my own turntables for years which are very well looked after with new Ortofon cartridges/needles that I replace every few months and the weight and anti skate is set correctly and have never had any problems! However, having DJ'd for somebody last year whose equipment wasn't set up right and maintained I too had several records (all styrene) damaged. Having discussed this at length with many others it is frightening how many people are clueless when it comes to setting up a turntable. These records are like antiques, people's pride and joy. It's definitely put me off DJ'ing and I am very wary now.