Erm...
I had played Minecraft...
..how to prove...
Suppose you could ask BreegullBeak, who was on at one point with me (where he was taking a picture of his snowman, explained he was about to, wrote out "cheese," to which I responded "cheese... or are you talking to snowman?").
Chilli was also on with me- we didn't really talk much until he noted that there were various colors of sheep now, to which I responded that I wasn't actually aware of that. After he teleported, I had asked how, since I wasn't entirely familiar with the server commands....
...you can see my tiny development in the map-
a floating island- same one in the 'check-in' screenshot...