The only "toxicity" I've seen was my co-tank complaining about the location of one of the scenes in Castrum Meridianum. Right at the start before turning off the search lights, they ran straight through to grab all the mobs like normal before the scenes were unskippable. They bit the dust the second the scene was over, but that was the only negative thing that was said, the rest of it was light hearted fun....and about how the lipstick is painted on the helmet of the final boss there...so does toxicity towards NPCs count?