Very interesting Trevor.
If you want to share your hobby with other Haworthia enthusiasts I would recommend Planet Haworthia on Facebook which has 530 members worldwide. People post photos from their own collection, comment on other plants, ask questions etc, rather like this Forum but just related to Haworthia. I am a member of the same group for aloes (Planet Aloe) and have learnt a lot from other members who are kind enough to share their experience, post photos of mature aloes and plants in habitat and help ID unknown plants.