Since GitHub "reworked" their definition of following/starred, those of us with large numbers of starred repos are left with a massive list in the Hosted Repositories window.
Eventually, I think the best route would be the addition of a filtering mechanism in that window, but I can't suggest a UX-friendly way to do that..
The simpler fix, for now, would be to add additional checkboxes in the 'Edit Account' dialog - "Show private repositories" is there now, so it's a logical place to add an additional "Show starred repositories".
[With the latter implementation it's important to note that starred repos can also be simultaneously followed.]