I'm not sure if this is meant to be a serious comment, but not only is it misleading, it's also naive. As you try to lead the conversation into talking about an actual kernel halt or panic as opposed to what the OP actually said.

This was the original claim that you responded to. "by making the phone so unresponsive that a watchdog kicks in, or by using so much RAM that the OOM killer goes to town."

Crashes obviously happen on linux systems all the time. That's why this exists http://linux.die.net/man/8/watchdog and why we have reports like this http://www.unix.com/aix/106921-process-crashing-aix-due-memo... and this http://www.linuxjournal.com/article/6059 etc. Are you claiming that such a situation can't arise on linux.

The same is obviously true on Windows and OSX.

Pivoting the conversation isn't the best way to make your point.

edit - Not to mention you attempt to use anecdotal evidence to support a general claim. Such has no place here.