Ask HN: Is promoting a self-hosted event not ok by HN standards?

My wife does children's book readings with adults from a psycho-socio-emotional lens. She uses children's books as a medium to open up and hold spaces for conversations on complex themes specially mental health. I thought about helping her promote her work by sharing the links for these events on HN. One of the posts just got flagged and I was wondering if this kind of promotion is looked down by HN folx.