Terrible chair hog issues on Princess, Royal Caribbean and Celebrity (our most recent sailing a few months ago) — seems to have gotten worse recently.
The cruise lines seem unwilling to enforce policies. They could put down timestamped cards and collect them along with belongings (I’ve seen apples, flip flops, books, etc) after reasonable Timelapse, perhaps 45 minutes. The belongings to be deposited on a vicinity table.
As long as the cruise lines ignore this, the passengers will suffer — just not right. It is not quite as much fun if we need to be circling the outside lounges like trying to find parking at the mall during the holidays— oh, and am paying thousands for the privilege onboard.