[dirkgently]

> Of course it may be that many startups actively do not want people unwilling to provide FB data to try out/use their services.

Right on! Using FB to login to various sites (mainly, commenting for in house or third party systems) has become de facto standard. Though some people will right away see the obvious problem with this approach, majority do not care, and will happily post with their FB profile.

It's a low hanging fruit, and with more than enough willing to give up their privacy, it's good enough for the echo system.

I am happily seating out of it though.