Pipl is a data broker that posts personal information online. Unfortunately, there is no specified process to remove yourself from Pipl.
Speed: 5, Slowest
Difficulty: 5, Hardest
How to Remove Yourself from Pipl
Pipl does not provide any kind of opt-out process on their site. Instead, on what looks like a page laying out an opt-out process (https://pipl.com/help/remove/), they explain that they merely aggregate information from various sources, and if you want it removed, you need to remove it from the source.