Why are transform fault well known?

Transform faults are well known because the type of plate boundaries that are responsible for them don't destroy or create any new crust. These boundaries simply slide past each other, so they are the only one that is different. Many faults cannot be seen on land, so people know the ones that can be.

Transform faults are called conservative boundaries because no crust is created or destroyed; the plates just move past each other. Most are found in the ocean along mid-ocean ridges, which are ridges of mountains in the middle of the ocean. They can also occur in or alongside continental crust.