It should be self-evident to anyone who dies from a crash or some other OOC reason that they should go ahead and respawn. That hardly bears mention, but just in case it does, there you have it.
Any character can, at any time, terminate the life of any other character permanently. Aside from that and the aforementioned OOC exceptions, if you are experiencing "random deaths" you are doing something terribly wrong, most likely because you have grown used to respawning and become comfortable with it.
If you got pwned by a monster while no one was around, then at some point you made a decision to put yourself into grave danger without taking any precautions whatsoever. Unless you are playing a character with a wisdom of 8 or less, the "sheer stupidity" occurred long before the death, and it was entirely out of character. Again, I blame overuse of the respawn function.
Death means dead. It's not timeout, it's not punishment, it is death. That hollow sense of loss you feel at the news of another character's death is entirely natural. That's how death is supposed to feel. It's not something to be celebrated, it is something to be avoided at all costs.
This is Escape from the Underdark, not Frolic through Elysia. Which is more immersive, realistic, and conducive to amazing role-play: an Underdark where death has meaning, or a Underdark where everyone well-liked is immortal?
In my personal opinion, the respawn function is OOC, and should be reserved for OOC situations. In my estimation, overuse of the respawn system cheapens the value of the server setting and everything in it, including the role-play.
Death is a part of life, and whether you want to get pwnt less, or just have a more immersive and enjoyable role-play experience, you should respect the Grim Reaper. All of these tips and tricks for staying alive are not simply OOC gameplay tips, they are IC survival strategies, all of which you will quickly develop on your own if you simply cultivate a healthy fear of death.
In real life, unlike the Underdark, no one gets out alive.