Anti-Puncture Tyres At-a-glance

Why do people hate on gatorskins so much?

Ive ridden the same gatorskin for the past 4 years in the city and had no cuts or punctures at all. Regularly ride over glass. They also feel great for skid/skip stopping etc, very sticky and controllable.

I'm beginning to think there is maybe some serious quality control issues down at continental.
Some people sing their praises and wouldn't ride on anything else, others, exact opposite with little middle ground. Most people who hate on them state slices and gashs being the main reason for the tyres early demise. Maybe one of the rubber compounds or vulcanizing process isn't as good on some batchs as it is on others?
Mine have certainly got a few good slashs and scrapes in them already, and I can count on one hand how many times I have skidded a wheel on them. Only 1 puncture, which I couldn't find what caused it, though I do have many (5+ on each tyre) holes which have gone through the outer rubber and left a 2-4mm of rubber missing.