i've only ever asked two people not to tag me. one was selwyn, the other was this dr rando who sent me a random pm freaking out at me over my character being a dick to theirs (spoiler my character is a dick, i am not, these things happen) and then sent me another pm a few weeks later saying it was okay for me to play with them now if i wanted. didn't need that crazy in my life so i shut them down, never had cause to regret it.