It seems like the letters "c" and "x" are working, but were purged from the site at some point. Any new posts that contain them seem okay, but pre-purge posts are very much not so.
I don't know, they don't show up in the newest posts for me, but show up in any comments. I'm really curious why this is happening.
All of a sudden the letter 'c' (the one after 'b', in case it doesn't render) is not showing up in articles on Less Wrong for me, in any browser, except in images. I see a 'c' in the word 'discussion' above, but not in the body text of posts like this one or this one. Is anybody else getting the same issue?