In short all links to http://www.livejournal.com/suggestions/ should probably become links to http://www.livejournal.com/contact/suggestion.bml , with appropriate changes to the link text.
As far as FAQ #164 is concerned I think that means
If you have an idea for LiveJournal, you should submit it at the Suggestions page.
needs it's link changing and
2. Read the posting guidelines on the Suggestions page, and submit your idea using the Suggestion Proposal Generator.
either needs completely removing, or the 'posting guidelines' need to be rewritten somewhere and linked to.
I'd suggest the suggestions userinfo, but alas, it too has a link to the infamous http://www.livejournal.com/suggestions/. I'm submitting ideas for that to change separately. If the guidelines don't appear on the UserInfo or the new 'contact' chooser, they should perhaps be at the head of the 'suggestions generator'.