Here's my short commentary on the commentary about "edition wars" that's been dominating the blogosphere for at least a week now: Criticism is not a crime. Neither is sarcasm. They aren't even rude, in most cases: critical, sarcastic, and satirical works have been around for ages, and some of them are my favorites.
What isn't so good is criticism or sarcasm in the wrong place or time, or with the wrong intensity, or when repeated endlessly. When someone creates a blog or a forum post on one topic and you come riding in on your favorite hobby horse, shooting guns in the air like Yosemite Sam, that is rude. It's not even a sign of an "edition war", but more like personal narcissism. I made a comment elsewhere that I may in fact post "I don't like 3e or 4e" on my blog, or may explain why I don't like them on a forum when asked, but I will make a solemn promise not to show up at your house, bust down your front door, and start ranting in your face about why I hate 3e or 4e. Which, metaphorically, is the kind of behavior I've seen on some RPGNet threads.
Legitimate criticism, even sarcastic criticism, is welcome. You can even bitch about me on your blog, or post a comment on one of my posts about why you think my rules suggestion is wrong (some have.) Just don't turn into Yosemite Sam when you find out I'm unconvinced.