I'll just do the same as I did previous time: nuke everything, but simply not even bother with the bosses where the one who spawned them didn't even bother to make a decent dent in it. Yes, there are a few dozen players who spawn these raidbosses and share them without even hitting it themselves. And I REALLY don't care if they "intend to make the last hit". I simply can't rely on them actually doing so.