I don't really have any formal comment policies on this blog, other than a requirement that trollishness be signed. (You'd be surprised how often that's a problem...) For what it's worth, I don't feel the need to institute any formal policies -- this is my blog, I'm not a public entity, and all decisions of the judges are both arbitrary and final.
That being said, to a common sense degree, abusive behavior is in the eye of the beholder. ("Common sense" in this case being defined as "jaylake's common sense".) With rare exceptions, I do not foresee the substance of an argument being abusive, but the form of an argument can be. Feel free to pick on me all you want, I'll deal, but please be thoughtful about picking on each other in comments. Some people (myself included) go at it for sport. Some do not.
Like I said, be thoughtful.
That is all. You may shop as usual. No need to return to your homes.