"Twitter users create the favorite and just like they own their tweets they should own the result of their action. If you favorite something we argue that you should be able to decide what you want to do with the data you create. If you want to use it to give Flattr donations to other Twitter users you should be the one to make that decision."
http://blog.flattr.net/2013/04/twitter-is-forcing-us-to-drop...
"Twitter users create the favorite and just like they own their tweets they should own the result of their action. If you favorite something we argue that you should be able to decide what you want to do with the data you create. If you want to use it to give Flattr donations to other Twitter users you should be the one to make that decision."