User blog comment:Monkey D. Luffy;Gomu Gomu No Mi/Friendly Hacker/@comment-25297120-20141129012622/@comment-26239735-20141130152626

I think it is possible that you can't display Friendly Hacker 2 times in you display case without hacking.

Probably Loki hacked.

Proof:

This user: https://www.khanacademy.org/profile/TheSwedishHutt/

has many of the same badges in his display case. Probably Loki did the same thing.