Stop lol, nobody is ever gonna accept it
The idea is that they hope you're not paying attention and accept it by accident. It does occasionally work, which is why they still try it.
Some people care too much about a pointless online ranking. This is why I avoid the stupid [censored]. No match making. I get faced up against a dude who plays 10 hours a day. No thanks
I dont care about my ranking, I dont stress losing a game, even one I feel I should have won. It's just a game. Highest I've ever made it us Wild Card anyway. Who cares. Just have fun.
I still don't get why a friendly quit would retroactively undo any challenges you had accomplished, since those have nothing to do with wins, losses, or potential rewards earned from the event/br/ranked season