When you go on a first date with someone, would you tell them "hey, I've got this great idea about how I should [insert violence here] in order to [insert goal here]. What do you think?" Of course not, because whether or not this is a good idea, you are not getting a second date.
PR isn't inherently Dark Arts. It's about providing evidence to another party about yourself or your organization in a way which is conducive to further provision of evidence. If you start all your dates by talking about your worst traits first, you aren't giving your date incentives to stick around and learn about your best traits. If LW becomes known for harboring discussions of terrorism or whatever, you aren't giving outsiders incentives to stick around and learn about all the other interesting things happening on LW, or work for SIAI, etc.
If you start all your dates by talking about your worst traits first
This begs the question by assuming the proposed violence is a bad trait.
New proposed censorship policy:
Any post or comment which advocates or 'asks about' violence against sufficiently identifiable real people or groups (as opposed to aliens or hypothetical people on trolley tracks) may be deleted, along with replies that also contain the info necessary to visualize violence against real people.
Reason: Talking about such violence makes that violence more probable, and makes LW look bad; and numerous message boards across the Earth censor discussion of various subtypes of proposed criminal activity without anything bad happening to them.
More generally: Posts or comments advocating or 'asking about' violation of laws that are actually enforced against middle-class people (e.g., kidnapping, not anti-marijuana laws) may at the admins' option be censored on the grounds that it makes LW look bad and that anyone talking about a proposed crime on the Internet fails forever as a criminal (i.e., even if a proposed conspiratorial crime were in fact good, there would still be net negative expected utility from talking about it on the Internet; if it's a bad idea, promoting it conceptually by discussing it is also a bad idea; therefore and in full generality this is a low-value form of discussion).
This is not a poll, but I am asking in advance if anyone has non-obvious consequences they want to point out or policy considerations they would like to raise. In other words, the form of this discussion is not 'Do you like this?' - you probably have a different cost function from people who are held responsible for how LW looks as a whole - but rather, 'Are there any predictable consequences we didn't think of that you would like to point out, and possibly bet on with us if there's a good way to settle the bet?'
Yes, a post of this type was just recently made. I will not link to it, since this censorship policy implies that it will shortly be deleted, and reproducing the info necessary to say who was hypothetically targeted and why would be against the policy.