FAQ77 needs some tweaking. On the section titled "LiveJournal Users", "Members" it states: Up to 150 members (or 5000 members on ?mode=full pages) are displayed on a Community Info page. Maintainers have access to the full list of members through the Community Management page.
This is incorrect. Communities with 500 members or less display the full Members list. If there are more than 500 members it creates a link to the directory listing in both the normal and ?=mode=full pages.