I was spending too much time going manually through the job posts in HN, and it felt inefficient. I wanted to filter based on criteria like salary, remote/contract work, etc., and couldn't find a webpage for that. So, I decided to spend significantly more of my time, in order to write one. Was that wise? Unclear. But it's been pretty useful to me in my search for work, and perhaps it will also be useful to someone else here!