It’s in the article (I don’t mean to sound rude, if I did):

These last few hubs have been sending Netflix’s remaining DVD subscribers up to 10 extra discs during its final weeks of service, with no obligations to send any of them back. Netflix plans to donate a portion of its inventory to organizations focused on film and media, according to Zamora; the rest will be recycled.

I wish they’d just put them up on Amazon. I am pretty sure a good chunk could sell.