It is still hard to me to know how to convert timestamp to human readable date and vice-verse. So I have created this simple website to help me out - https://timestamp.online/.
When I have realised how often I am searching for converting between timestamp and date I have created this website - https://timestamp.online/. It's earning around $100/month. The most interesting thing is how valuable are people from US - overall profit depends almost entirely on clicks from US.
It is really great tool too see what used to be very popular posts in the past.
I have one observation. Posts linking to twitter - https://deephn.org/?sort=score&filter=%7B%22score%22%3A%7B%2... - have most of the preview occupied with navigation and other not interested parts. So maybe it is possible to use some hacky solution to show the content part for the most popular websites, or if multiple pages are downloaded from the same domain the content part could be detected automatically.
I have been just clicking on the "New" menu. It was not clear to me that I should mouse over and wait.
There are many interesting transformations such as "Generate SQL INSERT INTO statement from CSV" or "Generate ASCII table from CSV/TSV". They could be more prominent. How about moving them from "New" into "Library" section?
From my perspective I am always surprised when I see such article on the HP. When I check articles in the newest section - https://news.ycombinator.com/newest - most of them do not get upvotes and dies. So there is for sure some skill involved in getting here. :)