No - didn't spank my daughter.
Yes - got beat... er... spanked - as a little kid. My dad (and later my mom) used to beat me with a leather belt - for minor infractions (well... I thought so).
Funny though... he never spanked my older sisters. He musta been one frustrated person - I had 4 older sisters... and they weren't 'angels' - and did things that shoulda been spanking offenses.
Sad, but most of the memories I have of my father are of the beatings.
Am I 'dumber' as a result? I don't think so - but if our government sets up an 'aid' program for those who were spanked as a kid - I'll be first in line.