The set of topics too inflammatory for LW to talk about sanely seems pretty small (though not empty), but there's a considerably larger set of topics too politically sensitive for us to safely discuss without the site taking a serious status hit

And it's not just the site in general, it's also the participants. Some of the stances that have been mentioned in this thread are considered so toxic within some circles that anyone even discussing them risks becoming very unpopular in such circles. At worst, everyone who's known to be an LW regular will be presumed to hold such opinions, regardless of whether or not they've actually even participated in such discussions.

I don't have a problem with such topics being sometimes touched upon, but if they were regularly and extensively discussed, I could imagine getting a little nervous about using my real name here.