Watching tanks solo bosses is annoying, but I'd rather not enable a possible griefing system like this one.

Already bad enough when I'm tanking sometimes a bored healer will Rescue my tankbuster into all the DPS.

I just think perhaps there should be a mechanic that if only one person is left alive, then after 2 full minutes or so they could enrage. If your job has rez, plenty of time to get someone else up.