I have 3 years experience as an Office Staff (Registrars Office) in the University.
Onlinejobs "ID Proof" Indicator Indicates if "they are who they say they are".
DOES NOT Indicates skill level.
ID Proof scores are 0 - 100 with 100 being the best. It is calculated based on dozens of data points.
It's intended to help employers know who they're talking to is real, and not a fake indentity.