If then user gave them a fake address and never get the check because of it is another matter.
If you're doing serious business why would you lie to them about your address in the first place?
Exactly. Most of the people complaining about PayPal are under the age of 18. They clearly state in their TOS that you must be older than 18 years old. If you are using a fake address, there is probably a good reason for it (read: BAD REASON), and that is why PayPal will limit your account.