I sure do.
What's wrong with a run that will fail or be untimed ? You know that the goal of this game is to have fun right ? Something that you get whever you time/clean it or not (but not when someone abandon the group).
As expected, you're only thinking about yourself, not about the rest of the group you're leaving.
That's absolutely wrong : as I said most the runs are 5 players doing their fair share of the job. If you complete keys by doing almost nothing, you are either playing by way above average players, or got a way above your level gear.