This would be like selling a Steam key outside of Steam and out of Steam policy. Make someone buy the game on itch to have a key to go to Steam is like selling a Steam key.
I thought the point was that it somehow just don't work otherwise.
It's frustrating if your old enough and then this happens.
Alright, I understand at least that you don't want to do that? I thought there is no point in arguing if you already own the game.