I don't think everyone else is advocating being mean to people (well maybe I am, but thats just how I roll). Most vets in the thread are saying read the lfm and don't join if you can't run that way. These threads always end the same way, with 90 per cent against the OP. This is a classic thread backfire, kind of like me complaining to my boss about my secretary interupting me while I'm trolling the DDO forums.
I don't think this is unneccesarily cruel. The OP is on timer; this is a teachable moment for him. Hopefully he will learn that if he wants to avoid the timer, don't join zerg and /death groups, or join them and actually /death. If he doesn't learn and doesn't follow the LFM, he will be that guy who no one wants in their groups.