Thread:Perrington/@comment-27800635-20160824194402/@comment-27186959-20160825004419

Wikipedia has a similar system; it pretty much notifies a user via wiki notification and/or email that someone appreciated their edit, "approving" of it pretty much - usually used when someone edits a page started/maintained by someone else. Or uh, when certain people (me) are really eager to push the new damn button so I pressed it when looking over revisions on Perrington's sandbox.