That's one way to win a disagreement, BS12 admins - give your opinion, disable OOC, then threaten to ban anyone who tries to reply on the IC channel.
That's what people are talking about when they say you're far too strict. It's not like people were blowing up the ship with bombs on purpose, there was no security and they were fighting back against a murderer who was running around killing people. Was everyone just supposed to line up nicely while the (admin, I'll note) traitor shot us one by one? Because that's what you seemed to be suggesting. Don't you dare say we didn't know he was going to shoot us all, because that's metagaming (for all we know he's a complete nutter and we're stuck here with him).
To use space's bank robbery situation, people *DO* sometime charge armed criminals. Regular, ordinary people with no training. It happens - not everyone goes into cower and hide mode when threatened, especially if the criminal is outnumbered. Is it smart? maybe not. It happens, though. I'd wager the crew of a spaceship would also have a greater percent of 'brave' people then the general population too (especially on a spaceship run by a company with as bad a reputation as NT). If we'd had any security at all, maybe you'd have a point, but we didn't.
Just because the admin traitor wanted everyone to be cowards and hide while he had free reign to kill people does not mean it's bad RP for them to fight back.