Internal Server Error on support board?

What are the links to? Is there a pattern? “This isn’t every result but it’s quite a few of them,” really doesn’t help anything. So far, I haven’t found any results that generate 500 errors. We need more info, or at the very least, a pattern. Are the Codex results generating the 500s? Are the forum thread results generating the 500s? Are the 500s generated by links to forum threads that start with “38”, for example: /support/topic/38*** ? Are the 500s generated by links to the Codex with the word “spam” in them?

I can’t believe that the old URLs are still being indexed … ::sigh::