The point is that it's not entirely useful for employers, which seems to be what you're concerned about. If 80% of people are committing to private corporate so

The point is that it's not entirely useful for employers, which seems to be what you're concerned about. If 80% of people are committing to private corporate source control, and 20% are committing to private github accounts, it's not readily apparent why you would care to see some vague statistics about commit frequency for 20% of your candidates.