It would be great to be able to knock teams out of a public league. Teams that do not want to participate that is.
I would also like the option of dropping out of a league that I joined by accident.
not sure about kicking out but i was able to drop out of a league i joined by accident simply by going to my team page and clicking "delete my team" from the menu in the top right.
i think it only works for leagues that haven't drafted yet tho.