Yes earwig pincers do hurt if they pinch you with them.
I have been pinched by an earwig pincer and it does hurt and is very painful but the pain subsides within about 30 minutes or so.
I would highly recommend to not ever pick up an earwig unless you're wearing thick gloves because they can and do pinch you with their earwig pincers.
The earwig pincers can break skin too and cause bleeding.
That happened to me and it's because I picked up an earwig with my bare hands and didn't wear gloves.
Now I wear gloves when picking up or touching an earwig.
Earwigs do not bite but they do pinch you.