There are a few features that I'd like to see:
1. In someone's profile, say how many states / provinces / countries they have hits in. I think that many of us are tending to try to get more diverse hits (rather than hits themselves), so that's a nice way to compare them. Even nicer would be a "Top 10 Regions" report that listed the users with the most diverse hits.
2. The ability to see the "Your Bills" report for another user. Sometimes I see a user that has an interesting profile and want to see all of their statistics.
3. The profile should be enabled (the checkbox when signing up) for new users. Personally, I don't see that there is any secret information in the profile (particularly since they supplied it to the web site), so see no reason to disable it by default. However, some people might be super-touchy, so perhaps the profile could be enabled, but only show completely non-personal information such as the profile statistics. I find that the people who get my bills and register almost never enable the profile.