You're right. It's probably a case of "the straw that broke the camel's back". Hacking (non-casual) games where people make a big time investment is sensitive. I mean you remove his guns, which means they theoretically can be removed arbitrarily again some time in the future after hours of scavenging, so he faces the idea that there's no point in playing anymore. Add that it's a farily expensive game for a lot of people, and that a certain % of people use it to escape a grim reality, and the reaction may be very understandable.
However, there are times when you face totalitarian admins, and where the only way to combat them is by hacking. With power comes responsibility. Hacks should generally be designed in a way as to advance the interests of players. We all make terrible mistakes, but in the end they make us better human beings.
