I would personally love to have no yardage markers anywhere through the green, only a simple marker at each tee giving overall distance. However, the cat's been out of the bag far too long, which is too bad because those with good distance perception have no advantage. Pity.
Yet, while it may be nigh impossible for a public course to go markerless, as has already been discussed here, there are still those few private courses, such as Friar's Head and The Institute here in northern California (completed in 1999) that rely on member knowledge, and in the case of The Institute, caddies, one of which accompanies each and every player.