I have seen numerous people misuse their nonstick pots and pans. I have seen some pans in which nonstick coating has been scratched and washed with abrasive cleaners so badly that the pan has started to look like aluminum. Firstly, you're not supposed to use stainless steel cooking spoons and scratch the whole nonstick layer of a pan. Secondly, I have seen several people use wooden cooking spoons or nylon ones (the kinds that feel like plastic). Wooden spoons are fine to use in nonstick pots and pans as long as you are not stirring rigorously and destroying the nonstick coating. Nylon are fine too but when you fry with it on high heat they tend to develop bubbles or have indentation wherever it touches high heat (or also if you leave it touching the edge of pan).
I have had this 5-piece silicone cooking utentil set for over 5 months and I LOVE it. No major turmeric stains so far (considering how we cook Indian food twice a day). It is BPA-free and is resistant to high heat cooking.