I wasn’t the one who said 5 minutes. But, come on, if you spend some time (maybe 15 minutes) watching the pool area, it’s pretty easy to tell if the stuff left on the lounger is being used or being left to “reserve” the chair.
You can ask the people sitting around the chair and the CM in the pool area if they’ve seen anyone actually sitting in the chair if it makes you feel better. But it is not uncommon to see lots of chairs full of towels, flip flops and the like but never see anyone actually sit in that chair for an hour or more. That isn’t right. Everyone has to take their turn and share.
There is no seat saving but there are no posted rules. If no one is sitting in that chair or appears in the pool area after a reasonable amount of time, than that chair should be available to those people who ARE in the pool area. We can argue about what a reasonable amount of time is, but it is unfair to have empty loungers full of people’s “stuff” and not people, while others are forced to stand around without access to a chair, in order to keep an eye on their kids in the pool.
We do the same thing with hammocks on Castaway Cay. We will watch the area for awhile and if no one appears to be actually using the hammock, we move the stuff left in the hammock to the area under the hammock and lie there. When we are done using the hammock, we pick up and move on so others can lie in the hammock.
So if people are irritated to see their stuff moved, so be it. Stuff left behind in a chair does not convey ownership, it’s just stuff after all.