luno received a cookie on Jun 06 for being very clever. And unlike in some places, when someone says something clever on BuzzFeed and we say, "Have a cookie," we actually mean it! Except we don't, because this is a virtual cookie and what the hell are you going to do with a virtual cookie?
luno received a "Fact Checker" badge on Mar 13 because they verified or disputed a fact and backed up their claim with some kind of written or visual proof. If we didn't have someone to check the facts, none of the facts would get checked - and then where would we be?!