Board Thread:The Last Sovereign Discussion/@comment-31763506-20190504042018/@comment-27713488-20190510130234

It actually is HTML; the usual top level in the ToC is an h2, though if you do single equals signs around a section title, I believe it makes an h1. Wiki style guides tend to discourage that since the page title is an h1.

Anyway, once per bullet point seems reasonable to me; there's a lot of bullet points in some of those sections.