Comments policy (new)
1) Being rude, insulting, condescending, hectoring, etc. I know this is common and even normal on the internet, but I won't put up with it here.
2) Going off-topic, including "change-the-subject trolling" ("why are you writing about that trivial subject when here's something else which is more important", etc.).
3) Making threats. I've never actually gotten a threat, but if I ever do, I will report it to the authorities if that seems appropriate, along with any personal info I can get about the commenter.
4) Being contentious for the hell of it, including pursuing interminable back-and-forth arguments. This is a blog, not a debating forum. There are plenty of sites out there which are debating forums, if that's what you're looking for. There are people who do this with the intent of wasting a blogger's time and energy (read this too if you have a political blog). I don't play that game.
5) Crackpottery and reality-denial -- I just don't have time for it. It would take a fairly long and scholarly post to comprehensively refute a typical creationist claim, for example, and the person making the claim probably wouldn't be able to mentally process it anyway. There are books and websites out there already which address such claims. The same is true of global-warming denialism, "scientific" racism, "porn causes sex crimes", "homosexuality is abnormal", 9/11 conspiratardia, etc.
6) Bigotry and hatred toward gays, Jews, women, racial or ethnic groups, sex workers, atheists, etc. I will sometimes let a comment of that kind stand as a "these people really exist" object lesson, but in general this blog needs to be a "safe space" from such venom.
7) Meta-arguments about what I choose to write about or not write about and how, etc., including this comments policy -- this boils down to "you should run your blog the way I want, not the way you want."
Finally, remember that there is no issue of censorship or freedom of expression here. You can start your own blog and say anything you want, and I neither have nor want the ability to stop you. This one is mine, though. As I've said before, freedom of expression means you can put a bumper sticker of your choosing on your car. It doesn't mean you can put that same bumper sticker on my car, not unless I choose to let you.