Microformats: Social Network Portability (via Zeldman)

Why does every single social network community site make you:

• re-enter all your personal profile info (name, email, birthday, URL etc.)?
• re-add all your friends?

In addition, why do you have to:

• re-turn off notifications?
• re-specify privacy preferences?
• re-block people you don’t want to interact with?

These are great questions. It makes me this of this great parody site, Useless Account.