2 of the top 3 posts are currently AI-topical. Might need to expand the heuristic

That said, I like it, and have bookmarked.

You’re right, I need to do that. It would create a glitch in the historical graph, but still, there’s too much slop getting through.

I expected the problem to include the ability for additional elves to wait while an elf tour is taking place: thus would obviously then allow for complete parties of both elves and reindeer to be awaiting Santa's return simultaneously. I'm not familiar with the original puzzle, but this is, at least, not the problem the author addressed.