I don't believe real backpackers are abusing these sites, and so publicizing them is no big deal. My understanding is that the FS's petty revenge "revegetation" strategy has pretty much been abandoned.
The problem is that as the paths beaten into them are becoming more obvious, less experienced/educated/civilized hikers are taking advantage of the privacy afforded and using the sites as toilets. Instead of just crapping right off the trails as usual, they're going into the sites and depositing right in the middle, always that perfect flat spot where you wanted to set down your sleeping bag. I'm particularly noticing it on the old logging/tote roads; you take about 20-30 steps in and there it is, neatly centered, with white decoration.
I've always thought that brushing in the paths to these sites was kind of silly but I've come to appreciate the wisdom