This is not the first time that I see an article already posted not so long ago reposted through the betterprogramming.pub url.
Edit: another example:
Initial post: https://news.ycombinator.com/item?id=26314756
Repost with the betterprogramming.pub url: https://news.ycombinator.com/item?id=26369441
Second repost, this time with an edited title : https://news.ycombinator.com/item?id=26412047