Boing Boing: Trademark thought experiment: when should intermediaries be cops?

“…under a proposed UN treaty, Internet Service Providers (as well as search engines, social media sites, online auctions, online games, and sites like Etsy and Thingiverse) will be responsible for detecting and interdicting trademark infringement and helping punish infringers by retaining and providing their personal information on demand from a trademark holder, without a court order.”