EDIT: but if you thought all possible minds had the same preferences, then it would be subjective nonrelative, wouldn't it?
Maybe, though in that unlikely event I would suspect that there's some universal law behind that odd fact about preferences, in which case I'd think it would be objective.
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.