I understand that this website is still in development, so I'd like to give some suggestions for forum categories and subcategories:
Category: FEMDOM HYPNOSIS DISCUSSION
Subcategories: general femdom hypnosis; ideas for sessions; live trancing; discussing specific files and hypnotists; theory of hypnosis
Category: FEMDOM RELATIONSHIPS
Subcategories: relationships and interactions between hypnodommes and subs; lifestyle femdom; professional ethics; femdom and vanilla life; discussing general hypnosis "scene" and communities
CATEGORY: HYPNOSIS IN MEDIA
Subcategories: Hypnosis in movies and TV shows, fiction about hypnosis, hypnotic youtube videos; ASMR
CATEGORY: OFF-TOPIC > POPULAR CULTURE
Subcategories: movies, TV shows, music, books, video games...
CATEGORY: OFF-TOPIC > LIFESTYLE
Subcategories: hobbies, sports, arts and crafts, bdsm scene, alternative lifestyles and subcultures
That's all... I hope others will add more suggestions or refine these.
Many of the suggestions you present existed in one capacity or another in a previous incarnation of the site, but not structured like that. I do like the general layout you present here though.
I'm naturally biased when it comes to that, but it would be nice to have the Writer's Block or something equivalent back in order to promote more Femdom Hypnosis literature and writing initiatives in the genre as a whole.