The one basically follows from the other, I think. This isn't a reactionary site by any means; the last poll showed single-digit support for the philosophy here, if it's fair to consider it a political philosophy exclusive with liberalism, libertarianism, and/or conservatism. However, neoreaction/Moldbuggery gets a less hostile reception here than it does on most non-reactionary sites, probably because it's an intensely contrarian philosophy and LW seems to have a cultural fondness for clever contrarians, and we have do have several vocal reactionaries among our commentariat. Among them, perhaps unfortunately, are most of the people talking about race.
It's also pretty hard to dissociate neoreaction from... let's say "certain hypotheses concerning race", since "racism" is too slippery and value-laden a term and most of the alternatives are too euphemistic. The reasons for this seem somewhat complicated, but I think we can trace a good chunk of them to just how much of a taboo race is among what Moldbug calls the Cathedral; if your basic theory is that there's this vast formless cultural force shaping what everyone can and can't talk about without being branded monstrous, it looks a little silly if that force's greatest bugbear turns out to be right after all.
(There do seem to be a few people who gravitate to neoreaction as an intellectual framework that justifies preexisting racism, but I don't think Moldbug -- or most of the neoreactionary commentators here -- fall into that category. I usually start favoring this theory when someone seems to be dwelling on race to the exclusion of even other facets of neoreaction.)
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A list of some posts that are pretty awesome
I recommend the major sequences to everybody, but I realize how daunting they look at first. So for purposes of immediate gratification, the following posts are particularly interesting/illuminating/provocative and don't require any previous reading:
More suggestions are welcome! Or just check out the top-rated posts from the history of Less Wrong. Most posts at +50 or more are well worth your time.
Welcome to Less Wrong, and we look forward to hearing from you throughout the site!
Note from orthonormal: MBlume and other contributors wrote the original version of this welcome post, and I've edited it a fair bit. If there's anything I should add or update on this post (especially broken links), please send me a private message—I may not notice a comment on the post. Finally, once this gets past 500 comments, anyone is welcome to copy and edit this intro to start the next welcome thread.