People who pick up grims in Auric missions without asking the team, why?

DISCLAIMER: Yes, I made this post because someone in the pub game I was in picked up a grim without asking.

But seriously. Why? It can't be the extra rewards, those aren't worth the health loss. Do you want a more challenging game? Then just down yourself and play with a wound instead of making everybody's health get cut in half.

But you know what, sure. Let's take the grim. Corruption damage looking real nice today. Why do you never ask your team if they're fine with it? I've played hundreds of public matches by now, and not a single time did I ever see someone asking the team if we were okay with them taking a grim. When I eventually notice I've taken a bunch of corruption damage, I wonder where I got that from, and then I check my teammates' inventories... yup, there it is.