The real roadblocks to data portability on social networks. A bunch of smart questions posed by Facebook’s Dave Morin. This is why I think data portability is the wrong framing—moving data between sites is really hard. Importing social relationships between sites is much more viable (hence my interest in social network portability). Also, the complaints about systems sharing e-mail addresses are neatly addressed by using OpenID as the GUID for a user instead. OpenIDs can’t be spammed.