Paypal's fraud detection routines have been extremely, extremely overinclusive. They are worth using for some unimportant stuff but you don't have to be doing

Paypal's fraud detection routines have been extremely, extremely overinclusive. They are worth using for some unimportant stuff but you don't have to be doing anything unusual to trigger a warning (I was just selling IT services), so they aren't worth betting your business on.