The comment you quote is the epitome of the stupidity of the general populace. She assumes that (1) the person was horrible, and (2) children were the victims. Oh were it so that only demented, evil persons be subjected to the registry and ONLY if their victims were children.
She, and many like her, have no clue who is on the registry or the vast range of crimes that can land you there. That my friends, is sex abuse.