I just realized that a number of posts that were imported to this site from my old blog are missing backslash characters. After doing some investigation, I found out that there's an associated WordPress bug (Ticket #21007) against the importer utility. Apparently, backslashes aren't preserved as they should be.
I'm working to fix all of the relevant posts and comments. When I've completed this task, I'll update this post.
I believe I have fixed all of the relevant posts. If you spot a problem somewhere, let me know!