I haven't know any person who was a victim of cryptojacking, just the dmania drama from a few months ago, but since it is difficult to notice if its happening most people wouldn't realize their resources are being abused.

Abut ransomware I do personally know people who were victims. They work on a clinic close to where I live and their system was infected by a ransomware, they didn't pay of course, and ended up losing everything they had in the system.