If you're not even gonna play, expect your teammates to DC
This game holds survivors hands so hard it's not even funny. All the gens can be done in about 5 minutes. We have second chance perks like DH and BT. Most killers suck design-wise and are not viable in higher level play. Looping is easy. Survivor mistakes are not that damaging in the long run.
Why, then, would you stand around like a bunch of rank 20s, not taking the aggro, not doing gens, not opening chests, and not even cleansing totems? To the survivors who do this: way to go. You just made someone who never DC's... DC.