I think i checked the wiki awhile back andd saw the golden apple isnt implemented yet, but im not sure either. All i know is i havent found an apple, and the golden apple is not in the crafting menu. So no, i dont think these posters found apples and no, i dont think they are implemented yet.
https://www.youtube.com/user/GuttersYT
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current YT ^
http://www.youtube.com/user/GameTopicTV
the slashes are from my keypad on my tablet screen very annoying and too lazy to it
https://www.youtube.com/user/GuttersYT
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current YT ^
http://www.youtube.com/user/GameTopicTV
The contents of the chests are random