If I remember correctly the "last" time was in association with Dbrand, giving away half iPhones and half Samsung phones, who publicly showed winners and tracking information and was overall more transparent. I believe that was in response to the time you are referring to where it seemed more sketchy.
Not defending him or anything, just adding some information.
Last time he gave away a ridiculous amount of phones he never actually sent them. The picture he posted was a bunch of empty iPhone boxes stacked up.