I got a thanks today. I clicked on "View edit" to see what it was about. This lead to the user page of the user who thanked me, not his edit as I expected.
Possibly due to me using an oldish browser: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.16) Gecko/20121207 Iceweasel/3.5.16 (like Firefox/3.5.16)
Version: unspecified
Severity: normal