I loved the idea that my Favstar list could automatically be created from the top 20 people I starred. It was great until I went to make a new list and discovered the only way to regenerate the list was to manually remove everyone from it and do it again. Removing the list from Twitter should IMO purge it from Favstar but it doesn't. Even just a reset button to clear your Favstar.fm list would be good, but more tools to view/add/remove people on the list page would be great.