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.