Makes you a word I can’t use here. But there are many reasons to use that lane so I give people the benefit of the doubt on that one. I try to get out as soon as I can if I am holding up cars behind me and no one is in front of me.
But I’d rather that (if traffic to the right is moving along normally) than someone blocking the passing lane. That is much worse.
If traffic to the right is moving slowly, and you’re in the carpool lane moving even more slowly holding up traffic, then that makes you that same word times 10. I’ve never actually seen that though.