Since all promotions above E-6 require the candidates to get selected by a board of some sort, it takes some skill to send the right message to the board that "this person really needs to get promoted" or "this person shouldn't be promoted"; this last option is especially important when you don't want to completely demoralize the Sailor who's getting the evaluation.
Do you have any examples of fitrep or eval comments you've seen that were "damning with faint praise" in an especially artful way? And do you think there's a better way we should be doing senior NCO and officer promotions than the old Promotion Board?