That is the idea. I dont't like signing up for accounts either. The only reason we have account signup right now is for the beta period. Essentially to understand how people are using the site and to make fixes accordingly. When we launch we want it to work perfectly, right now its far from that.
Now you understand how people will use the site: they will look at it, not instantly understand why it's worth giving personal information to, leave, and tell their friends it's not worthwhile.
If you want to track interaction, just give everyone a cookie (or Flash cookie, nearly nobody clears those) and watch behavior by that.
