Hi Pam,
Sorry for the delay in getting to you, and sorry to hear about the trouble with a problematic address.
Here's the scoop: Per USPS guidelines, a full name is not required. That's why mail can be sent to "Resident," "Occupant," "Evelyn," etc. As such, it's up to the buyer to input whatever information they see fit.
Our system requires the street address, city, state, and zipcode to be filled in. Our system, however, does not verify a buyer's shipping address. I was able to locate the thread you mentioned in the Bugs Forum -- please rest assured that it is impossible for an order to be made with just a name and a city.
I understand that this can complicate things! Conversations and emails with your buyers are always recommended. You might also consider using shipping labels that will verify the addresses for you. It's not an exact science (isn't USPS mysterious?), but it tends to work for many of our sellers.
Hope this helps!
Ev