Is there any way someone could post about public policy relating to abortion access (or another sensitive subject) on LessWrong without getting super downvoted?

It's not as much about moral intuitions to me so much as rational arguments. That may not hold up if someone has some assumptions diametrically opposite of mine, like the unborn being sacred or otherwise special in some way that assigns a moral weight to them incomparably higher than the moral weight assigned to pregnant persons. That's something I'd be willing to write about if that itself is considered interesting. My intention is to ask what are the best compromises for various positions being offered by the side of the debate opposite myself, so that's very different from perspectives unfit for LW.

I meant to include the hyperlink to the original source in my post but I forgot to, so thanks for catching that. I've now added it to the OP. 

It seems like the kind of post I have in mind would be respected more if I'm willing and prepared to put in the effort of moderating the comments well too. I won't make such a post before I'm ready to commit the time and effort to doing so. Thank you for being so direct about why you suspect I'm wrong. Voluntary explanations for the crux of a disagreement or a perception of irrationality are not provided on LessWrong nearly often enough.

As to the question of whether I can hold myself to those standards and maintain them, I'll interpret the question not as a rhetorical but literally. My answer is: yes, I expect I would be able to hold myself to those standards and maintain them. I wouldn't have asked the original question in the first place if I thought there wasn't at least a significant chance I could. I'm aware of how I'm writing this may seem to betray gross overconfidence on my part.

I'll try here to convince you otherwise by providing context in terms of the perceived strawmanning of korin43's comment on my part. The upshot as to why it's not a strawman is because my position is the relatively extreme one, putting me in opposition to most people who broadly adopt my side of the issue (i.e., pro-choice). I expect it's much more plausible that I am the one who is evil, crazy, insane, etc., than almost everyone who might disagree with me. Part of what I want to do is a 'sanity check,' figuratively speaking.

1. My position on abortion is one that most might describe as 'radically pro-choice.' The kind of position most would consider more extreme than mine is the kind that would go further to an outcome like banning anti-abortion/pro-life protests (which is an additional position I reject). 

2. I embraced my current position on the basis of a rational appeal that contradicted the moral intuitions I had at the time. It still contradicts my moral intuitions. My prior moral intuition is also one I understand as among the more common (moral consideration should be given to an unborn infant or whatnot after the second trimester, or after the point when the infant could independently survive outside the womb). That this has me in a state of some confusion and that others on LessWrong can help me deconfuse better than I can by myself is why I want to ask the question.

3. What I consider a relatively rational basis for my position is one I expect only holds among those who broadly share similar moral intuitions. By "assumptions diametrically opposite mine," I meant someone having an intuition that what would render a fetus worth moral consideration is not based on its capacity for sentience but on it having an immortal soul imbued by God. In that case, I don't know of any way I might start making a direct appeal as to why someone should accept my position. The only approach I can think of is to start indirectly by convincing someone much of their own religion is false. That's not something I'm confident I could do with enough competence to make such an attempt worthwhile. 

Earlier this year, the LW team added the ability to hide posts from logged out users, and to prevent newly created accounts from commenting.

Why don't you give that ability to authors of posts?

I'm thinking of asking as another question post, or at least a post seeking feedback probably more than trying to stake a strong claim. Provoking debate for the sake of it would hinder that goal, so I'd try to writing any post in a way to avoid that. Those filters applied to any post I might write wouldn't hinder any kind of feedback I'd seek. The social barriers to posting raised by others with the concerns you expressed are seeming high enough that I'm unsure I'll post it after all.

I'm not an active rationalist anymore but I've 'been around' for a decade. Sometimes I occasionally post on LessWrong still because it's interesting or valuable enough for some subjects. That the rationality community functions the way you describe and the norms that entails is an example of why I don't participate in the rationality community as much anymore. Thank you, though, for the feedback. 

I am thinking of making a question post to ask because I expect there may be others who are able to address an issue related to legal access to abortion in a way that is actually good. I expect I might be able to write a post that would be considered to not only "suck" but might be so-so as opposed to unusually good. 

My concern was that by even only asking a question, even asked well in a way that will frame responses to be better, I would still be downvoted. It's seeming like if I put serious effort into it, though, the question post would not be super downvoted.

I'm not as concerned about potential reputational harm to myself compared to others. I also have a responsibility to communicate in ways that minimize undue reputational harm to others. Yet I'd want to talk about abortion in terms of either public policy or philosophical arguments, so it'd be a relatively jargon-filled and high-context discussion either way. 

My impression has been it's presumed that a position presented will have been adopted for bad epistemological reasons and that it has little to do with rationality without much in the way of checking. I'm not asking about subjects I want to or would frame as political. I'm asking if there are some subjects that will be treated as though they are inherently political even when they are not.