"Inconsistency" feature is great but has some problems. Here what I can report for now:
1. USSR/Russia schools have numbers, not names, so when a person graduated from school "2", "Inconsistency" reports that name looks like date.
2. Russian sirnames are different for men and women, so daughter of "Ivanov" is "Ivanova", "Inconsistency"reports this as a problem.
3. Most of male profiles I entered have last name but no birth sirname, for me this is OK, but "Inconsistency"reports this as a problem. I suggest to ignore such cases,