Accounts Connected:

QuitDough, gonnafly, miningfool
Proof:

 https://imgur.com/6IMoiMd
 https://archive.fo/FDAZa
https://bitcointalk.org/index.php?topic=3086496.msg31832543#msg31832543
 
Related Addresses:
n/a

Miscellaneous:

The user stated that he has more alt accounts,I'm trying to get some more info. Going through the posts it's easy to see that those accounts were traded.