- Do you use an antistatic wrist strap when working on hardware?
- Have you ever fried some hardware that would have been saved if you had been wearing one?
Yes. Once, a long time ago. That "proved" the issue to me very quickly in a very painful fashion.
- I know some people who wear them religiously and others who say they are a waste of time.
If you don't care about the dollar amount of the hardware you're attempting to protect, then yes, it's a waste of time.
Frying an $800 high-end RAID controller card because someone didn't take anti-static precautions, well...let's just say that was a bad choice.
I now wear one whenever I work on equipment.
It takes only a few hundred volts to fry a circuit. To feel a static discharge, you need to have thousands of volts. In other words, you can kill chips easily without knowing it.