You say all this because you don’t do it. Like I said I know several people that do this and they don’t care if they win or lose because it’s not their main role. They get into a game quick fool around and get into another game quick. Yeah for people that care about winning and try every game it seems like a stupid thing to do but it’s definitely being done.
Some would but rarely. The simple fact is to these people the support or tank roles (or whatever their off roles are) are just as throw away as a smurf account to them. They go to them as if it is quick play because it is a quicker game and if they lose? Who cares? It’s just their off roles not their main.