Because OP is trying to promote his project and get feedback, and you post about a competing product, to me the message is: don't look at the project OP wants you to check out, I've been using this instead and and it's amazing!

Who cares what you're using, I see show HN posts to be about OP's project, seems like a dick move to me to diverge attention to some other project. I just don't understand the motivation

Just goes against the spirit of people writing their own utils and sharing to me. Good on OP. They're not looking for money or fame here. If this util benefits one reader on HN it's worth it.