i think you know the answer already...
the only way to prevent "garbage" from being entered into
form, is to
require info that can be verified, i.e. email address.
i have a friend who's doing online bookings for local hotel
association,
and he got a booking one day from Mr. A. Fluffybunny.
"Garbage"? No,
that was actually his real name.
--
Azadi Saryev
Sabai-dee.com
http://www.sabai-dee.com