Sheryl has the same profile picture which she changes again and again because she knows she'll get more Likes each time she updates to the same profile picture: at the start nobody Liked her profile picture except like 10 people, then it grew to 100 Likes and then she got famous --- so, it went up to a big number like 10,000 Likes.
This is when she understood each time she changes to her same old profile picture, she gets an additional something-like 2,000 Likes. She's now at 24,000 Likes as of Saturday 30th May 2020. Next month, when she needs a hit of Likes to get her fix, you can guess what she'll do: you guessed it, she'll update to the same profile picture somehow -- to get more Likes.
Thanks for teaching me your tricks and tips, Sheryl Sensei.