I am one of the people in this ruckus. Perhaps an explanation is in order, which you may take as an apology if you want.
Off-topic remarks are annoying. The original post was a mildly sexist joke which was still on-topic. It prompted a completely off-topic politically correct rant, and that provoked my completely off-topic rant about being adults and not on slashdot.
Where does one draw the line? The joke was at least related to the topic, and easily ignored. The complaint was 100% off-topic and reeked of political correctness run amuck. We readers have to carry part of the load for lwn's tone. I thought about it for a bit before responding, finally deciding that just as one can't help but make noise in shushing someone noisy in a library, one can't help but make an off-topic post to tell someone new to stop making off-topic posts. The next one to complain and suggest our grumpy editor start deleting posts made the same decision.
I have no idea how I would respond on a different day. I hope our editor is never forced to delete posts simply for being politically incorrect.