We have been tinkering some more. Today we launched the ability to follow other people you admire on brilliant, without having to be connected to them by Facebook or email. When you follow someone, their profile will appear in your sidebar on the main page. This will allow you to have easy access to the profiles, and problem solving efforts of others on Brilliant.
We also did a design update on your profiles. It is still a work in progress. Your levels and up-votes are currently missing from your profiles. They will return shortly :)