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.

They are posting a link to their freemium SaaS product that has a price, of course they're looking for money.

If I find something posted here interesting I like knowing what other similar tools/services/platforms there are out there, even if they're free, so I definitely find posts like the one this thread came from to be helpful one way or another. These sorts of threads also often lead to discussion of the differences between the options, which is again very useful, especially in cases like the current one where the competing offering linked is not just a freemium SaaS platform but also as F/OSS as it can possibly be if you want to self-host and not have to pay anyone other than whoever manages your server.

If you're building a product for a market that already has solutions, your product needs to be able to hold its own against the other offerings.