For more information on this subject, interested parties might want to do a search. I just ran Google on "ebay germany sniping" and got 1,700 hits. If you add "bans" to the search, it brings the hits down to 68, but then you would have to include "forbids", "inhibits", "prohibits" ... - your thesaurus works as good as mine.
Here's one article, but regrettably, it's from "years"
ago:
http://www.auctionbytes.com/cab/abn/y02/m10/i25/s02