In this particular case, it's been posted only three times this year, and the first two had only 2 or 3 points, meaning that hardly anyone saw them--I know I didn't. I wouldn't have learned about this if not for the repost.
I don't see anything wrong with reposting perennially useful stuff at reasonable intervals. Maybe twice in as many months is too much in general, but it seems to have worked out all right.
I've never seen this before, and am glad that I have. One of the ten thousand I guess and I visit hacker news at least a few times a week. There are tons of new stuff on here everyday. No use complaining about a repost
I am wondering why people don't do the due diligence of searching if a tool/article has not already been posted before submitting a duplicate item.
I am sorry if you did interpret this as `trying to make fun of people` – This is not my intention.
I still would like to know why duplicate entries are welcomed/accepted on a news aggregator (honest question)!