Last modified: 2014-10-28 00:57:43 UTC
The thank feature is useful for a couple of things, a "message recognized" confirmation, to privately indicate that one concurs with ones action without sending an e-Mail and as such I would like to thank for several blocks. But there are no "thank" links in the user interface for blocks (e.g. in the block log).
*** This bug has been marked as a duplicate of bug 58485 ***