Thanks for the kind words!
Threads are main focus for now.
After that Blogs, Articles & Marketplaces from addons like xenaddon/(UBS|AMS|ShowCase)
- XF 2.2 Article threads are already supported btw
There is a suggestion for "AMP thread nodes" on ampxf.com, but I'm not sure about that one yet (needs extra css, but doesn't really contain any content that helps rank for things)
User profiles: probably not, usually don't have content on them and I've rarely seen that a user-profile would rank for anything in search engines..
Login pages: same, only a simple form
To summarize which pages should be AMP:
Any "page type" that will hold content (preferably minimum 400+ words) is a candidate for AMP, rest not really
This based on the fact that search engines don't like so called "thin content", and adding AMP for those is therefore "wasted work"