Some ideas to improve visibility:
- Have @discobot send newly registered users a pointer to the page. (This would work for wiki pages as well.) In fact I believe it does that already and point to the FAQ, but given how few have read it it might not work anymore due to our SAML-based authentication. Either way it would only for for English, since at registration time we don’t know yet which categories the user intends to participate in.
- Gamification: Assign a badge to people who read the category-specific guidelines (for any category). Discourse already does that for the FAQ, but this is unsuitable for us since it’s not localized. We could either redefine that badge or make a new one. Of course, this would only work if said guidelines are builtin into AskLibO, not if they live in another site.
- When someone tries to post and hasn’t read the guidelines yet (or has last read N days before their last post), link to them in a dialog overlaying the preview pane. (Discourse does that when one is trying to link to a URL that’s already linked. Greying out the various CreatePost buttons until the user has read the guidelines would be nice, but I don’t know if the UI has the logic logic for that.)
No idea how hard it would be to implement these, but in principle it should be doable.
OTOH your fellow 

icon at the footer), and each heading is assigned an anchor, too (hover to see the link). For instance