> I.m.o. this kind of post comes very, very close to the line between information and spam. I strongly disagree with this sentiment. This post is "Hey, I buil

> I.m.o. this kind of post comes very, very close to the line between information and spam. I strongly disagree with this sentiment. This post is "Hey, I built a cool thing! It costs me money to run so I charge for its use." Their last post about this app was for the initial version released like two years ago. Two posts across a couple years hardly constitutes "spam" by any regularly used definition I am aware of. This app also addresses a unique problem in a way that is straightforward and elegant, and was improved upon as a direct result of comments from HN, so it has close ties to this community. Why would the author not post here with information about the update?