Not sure if you're trolling at this point but: the previous comment defined "maintenance" for you: "responding to real usage". The things you list are plainly not that.

"Maintenance" does not mean "development after the first week".

I'm not even sure why I bother discussing on HN, only to always get these comments from people who seem to think they know better than me about the maintainability of my own app.

I did not ask for your opinion.