FD's design decision, logical in some aspects as it's thematically proper, don't leave empty ships cluttering up possible space lanes. WHY the lack of life support would cause that is beyond me, but I don't work for FD and wasn't privy to the decision making process that came up with this one, silly as hell if you ask me, I'm obviously not the only one who thinks that either, but we weren't asked by FD on the subject, so...
I'd have gone with a different approach, and it would be a varied approach depending on WHAT caused the lack of life support. Massive damage to the ship due to attack or collision, ok, self destruction makes sense there, leave that alone. Life support gone due to JUST a busted canopy, don't self destruct, give X time as it does now and force ejection. NOW, at this point, a timer kicks in, you have X time to get back to your ship and fix it OR the computer will cause it to self destruct so it's not a navigation hazard if in space or on a dead planet. Instead of the standard Insurance Rebuy screen, have an option, Rescue OR Insurance Rebuy. Rescue puts you in an NPC controlled ship which will take you back to your ship for a price and repair the canopy and restore life support, PROVIDED that your ship is within X light years of human habitation. This means deep exploration, you ain't getting that baby back, but if somewhere inside the bubble or fairly close to it, you can get your ship back for, hmm, 2% instead of 5%? Less if you are whatever rank it is with LYR in Power Play? 1% in that case? Sound good? Seriously, any thoughts, toss em out, I'm just spit balling here, trying to come up with something that would be a little more realistic and less explodey
If you turn OFF your life support, NONE of the above happens, it simply goes off and that's it. If you are on the ship and there's no breathable atmo or a docking bay, you die after your RemLock exhausts itself, no rebuy screen, commander data wipe and you start over again with a Sidey and some credits, as you just committed suicide. If there's a breathable atmo or you are in a docking bay and you stay in the ship, nothing happens, you've got air to breath, RemLock systems don't kick in. If you leave the ship while the life support is off, well, you've left the ship, no self destruct, you've simply shut down your ship and left it. When you get back on, you turn on the life support or see above per applicable situation.
Thoughts, ideas, holes in the ideas?