I've never actually seen one, I deny all of them, because I've never thought to myself, that they could possibly be useful. To me, They are an annoyance. I be

I've never actually seen one, I deny all of them, because I've never thought to myself, that they could possibly be useful. To me, They are an annoyance. I become suspicious of any site wanting me to accept them. I would disable this feature globally if I could (or cared enough to figure out how.)