The author has deleted their Twitters and Discord too, and the domain has gone. Seems very scorched earth, I hope they're OK. (Not least because I love to see new publishing platforms and wish them all the best)
30 votes and HN front page has ripple effects, and might have overwhelmed the creator. Sometimes it’s not even a matter of being sensitive to feedback, sometimes it’s just not being fully prepared for the emotional toll it can take.
If this hit HN front page, it almost certainly made the rounds on Twitter and Reddit, where criticism can be even more harsh and even less considerate of the human(s) behind the project.
I also hope they’re okay.