It would be great if personal repositories in Bitbucket were made more visible / prominent. As of now, a new user logging in can see a list of formal projects with repositories. There is no similar mechanism to find more informal, single-developer projects. The closest thing to this is the "View All Public Repositories" link pointing to https://bitbucket.example.org/repos?visibility=public. This is problematic because the repository is only discoverable if it is public; it remains hidden if it only has permissions for a particular group.

I would suggest an additional UI to browse personal repositories by Group and by User. Alternatively, include Users in the Projects "dashboard" of Bitbucket.