Police aren't at all interested nor are ebay, ebay facilitates thieves.
A couple of years ago a hooky load of Batribikes went up for sale with yes you may have guessed no batteries, they were new model year bikes that were stolen from a lorry. Batribike themselves I believe got no where with the plod or ebay, I even reported them to ebay and gave them the news story and a link to their theft.
They were delisted for about 4 weeks then reappeared again.
Ebay is simply a crooks paradise for selling hooky gear, makes Delboy look like a saint.