I suspect the OP is asking because he migrated from Furl, as I did. The result (in my case) was a list automatically created for every tag. For me, that is 3020 lists.
I'm sure I could write a Greasemonkey script to automatically kill all my lists over the course of a day, but it would be nice to find a ready-made solution.
I'm sure I could write a Greasemonkey script to automatically kill all my lists over the course of a day, but it would be nice to find a ready-made solution.