These damned wallpapers gave me my worst experience with Apple. MacOS would delete them and redownload automatically over and over again, using almost a terrabyte of data per week.

And I wasn't even using video wallpapers at the time.

Just discovered I had no internet 3 days into the month as my ISP had cut me off. Had to dig deep and spend hours I'll never get back trying to find out where all the data was going.

Here's a thread I just found now that shows others having similar issues: https://www.reddit.com/r/MacOS/comments/1ii38g8/macbook_wall...