Hmmm, I wonder if they're playing statistical games - say, for example, grouping some schmuck who has an affair with a 17 3/4-year-old girl along with serial pedophiles and rapists in calculating recidivism rates. You know the old saying about lies, damned lies, and statistics.
Yes. Different types of crimes and criminals will have different rates. However all are lumped together under sex offender registration.
It's gotten to the point where the media report the perp as "sex offender" when it could be everything from flasher to child raper-killer.
It becomes an almost meaningless category.