Let me clarify, I have been in a very similar position where I lost an asset in which I invested most of the ISK in overnight as well, I had put a lot of time in it and I mean a lot, it was stolen and not even due to my fault. I had nowhere a similar reaction. It's natural to feel anger and sadness over something you have committed yourself and it's gone but how long does it really last before your realization kicks in? Heat of the moment? He was threatened him numerously in a time frame of 5 hours. And then again, if you can't control your feelings over a game designed to be like this, stop playing it, not meant for you then.

Also, there's everything wrong of thinking ill of your betrayer in a fucking game, man, in a fucking game, its a pixelated game that some nerds in Iceland made (no offense, CCP) and it is specifically designed to allow such stuff, realize that! You should stay away from stepping overboard. I don't care if he was honest or not, its going beyond the boundary.

And also, as to your argument that its not a great design when one person can turn an alliance inside out with no opposition, well guess what, there are mechanics to prevent that such as not giving someone extreme director roles or giving the person majority of the shares in the corporation and so on, plenty of stuff you can do.