They're entitled to defend themselves against accusations of things they haven't done, and also to respond to questions or assertions about their project. We encourage project creators to engage in the discussions about their projects. This is a normal part of building and launching a project.

From what I've seen of other AI-enabled projects interacting with forums in my field of work, it's very common for the AI people to jump in and answer every possible question and respond to every possible interaction, very quickly.

Could be just a bot doing it, but it could also be a sign of an inexperienced person trying to engage with an existing community without being part of that community. I know in my area it took years for me to learn that I shouldn't jump into every conversation, and that doing that rubbed people the wrong way, and I've seen others (many years before AI) wreck themselves by being unable to learn this lesson.

In some places responding bumps the thread so it's outright manipulative. HN doesn't sort threads like that.

I'm not sure this counts as astroturf, or simply evidence of a person who's not okay with letting a community opinion independently evolve. You could say 'well it's his job to fight the community if it looks like it's turning hostile' but think about that for a second. It takes some experience to know when you can let negativity be out there in the environment, and I think there'll be a lot of people who aren't capable of making such allowances.

I actually like when the submitter is present and the creator. They’re actually involved. There are lots of users here who play at being submitters of high-value content (created by others) only to later submit their own entirely AI written drivel.

This is interesting.