I think the incentives to link Ebid to social media, adding 20 points per media devalued the coinage. Good thought, but if the revenue derived from social media does not come back, you can't add stock to Buddy points, just run down existing stock of advertising merchandise.
The social media points I have vastly outnumber the lifetime buddy points I have earned from around 12000 Ebid sales.
For a few thousand sales I can earn a cloth shopping bag. Not very exciting and little incentive. But at least I don't pay 5p in the supermarket.