Do online dating background checks give false hope?

WCTV.tv ran this piece by Whitney Ray about the recent legislative attempts to disclose whether online dating services conduct background checks on their users.  

Opponents say if sites start claiming they run background checks, the disclaimer could give users false hope.

The problem is the quality of the background check.  What type of identity verification do these sites conduct?  If you are able to lie about your age when you sign up, how can a criminal background check be successful since most county criminal searches and nationwide criminal searches run off a name and date of birth match?  Also, in a simply world, some of us might want to fudge a little on our birthdays.   In this age of identity theft, why would you want to give a company our full name and real date of birth when it seems like databases are getting hacked everyday?