Hi Springy,   0  FB  in itself is not a problem,  as it is simple enough to block all buyers with 0  FB.

Over the years I have sold plenty of electronics to China and most other parts of the globe, and I dare say some would have been to low FB accounts, however at this time I am not shipping any items internationally as you can be sure as eggs, that as soon as the item is overdue and buyers hit INR, the perfect english will disappear and I will be left scratching my head at google  translations.

This particular bidder, raised sufficient red flags on top of the 0 FB  to trigger bid cancellation with the reason being provided as 

- Item not for international sale, bidder in China -

I do'nt think I could have made it any clearer but then he just changed account and tried again.  Ah well so far he has only cost me time.