I agree 100% therick. There is a local here, who is 80 years old and VERY set in his ways. I cannot tell you how many times I've not only filled in his holes, but picked up his trash target laying on the pile next to it. I have never said anything to him about it, and not sure what his underlying motivation is for doing it either. I have pondered this in my mind and have come up with a few opinions though.
1. He is old and it is labor intensive, to a degree to kick the sand back into the hole and bend over and retrieve his trash.
2. He is leaving the trash, because he is POed about the fact that he finds less around here, than he used to, because of the rest of us. Consequently, he leaves those targets for US to find, slowing us down on good finds.
3. He did not throw the trash down there in the 1st place, so why should he pick it up? Of course this is ludicrous, because he will have to contend with the same target later on, right? Unless I find it and then he will never have to see that one again, LOL!
4. He is an old salt and he's always done it that way.
His thought process certainly is the fact that the tides will fill in the hole, but the trash will be there until it deteriorates or someone throws it out. My excavations cannot even be seen usually, after a couple of wave passes, as I ALWAYS fill the hole. Filling is usually difficult to do, while in the water, but there is NO excuse for leaving open holes in the wetsand or higher in the dry, imo.