Tell me you haven't had this problem: you have a plot in creative and theres a couple other plots around you with normal builds. But, theres just one or two plots around you or next to you that ruins it all and has absolutely NOTHING on it (or maybe it does, but it just hasn't been touched in months). I understand that you can be finished with your plot and not want to add anything to it, but it's different when it's not even done! (ex: unfinished house, random blocks and grass destroyed throughout the plot) it's irritating when I have a couple around me, and one of them next to me; and unfinished head store. For as long as I've been on creative plots (August, which means it's been 3 months) and another plot behind me, I feel like there should be a rule for an abandoned plot and it should be disposed & cleared after a certain amount of weeks, months of being uninhabited. Sorry this is long, I'm just trying to get my point across, I'm sure I'm not the only one with this problem!
Support. I think after three months without going on your plot it should be deleted. This would also reduce the world file.