I think you want to de-duplicate entries. Two entries for “tosh”, three for “tomte“, and I’m not sure how many for others.
Oh thanks for the catch @bradknowles. Isn't the problem probably from the HN Database? I can solve it, but it may not solve the "root" problem (should de-duplicate entries in the HN Database level)
Edit: Sorry, I corrected my sentence. The fault is mine. Very sorry about this. HN Database is fine :)
Oops, sorry I forgot it is sourced from best stories, so it is indeed the problem with the code. Gonna solve it.