I mean, do whatever makes sense. It's our FAQ we can do what we want to. If something doesn't work we can change it.
I don't like the recent edit either. If you can make it less patronizing and hostile, do!
I'll see when I can scrape together enough motivation to tackle it - looking at it is leaving me rather frustrated, as I implied.
Less Wrong is extremely intimidating to newcomers and as pointed out by Academian something that would help is a document in FAQ form intended for newcomers. Later we can decide how to best deliver that document to new Less Wrongers, but for now we can edit the existing (narrow) FAQ to make the site less scary and the standards more evident.
Go ahead and make bold edits to the FAQ wiki page or use this post to discuss possible FAQs and answers in agonizing detail.