I got mine today from a (usually) reliable source, and according to the images in the first posting's link, the real one should have "E1916" stamped on the toy and the box, while the KO should have "D1816" instead.
However, my box has E1916, while the toy inside has D1816. The box isn't double taped or show any sign of being opened... so could both production dates be legit?
The only other things that appear to be noticeably different are the size of the round heads to the pins on the back and the size of the flaring on the front of the box. Both of which are like the legit version on mine, which just leaves the "D1816" on the toy as the only definite indicator that mine is a KO.
Did anyone who got theirs before the KO came out, have "D1816" on the toy, or were they all E1916... as ones made on the day of "D1816" were all for Japan, while the ones for Asia/HK were made on the day of "E1916", or both days.