I called and told Relations that, as a minimum, I want to be able to see the comments, even if I can't edit them. Gave her my number (and my wife's), described our stay history (and a problem with a former stay's comments) and she saw our upcoming stays as well.

Told her that we felt the viewing of comments to be an inherent part of the Hilton booking system and that we look forward to a quick correction of the situation. (I've had an error in my comments put in by a CSR that later were corrected based on me seeing the error. I'd have never realized the problem otherwise and don't feel like calling up all the time to see if the comments mysteriously change.)

If you care about it, do the same, otherwise, look forward to eatin' it.