SprinterMoon

http://www.sythe.org/members/399847-sprintermoon.html
Banned:
http://www.sythe.org/members/296458-unnam3d.html

7 IP matches with each other and nobody else on the IPs. They have other matches but most of these seem to be proxies with multiple other users, while these 7 IP matches contain only Unnam3d and Sprinter on them.
http://prntscr.com/67f00q
http://prntscr.com/67f05y
http://prntscr.com/67f088
http://prntscr.com/67f0a8
http://prntscr.com/67f0c0

Unnam3d's last post of 2013 was prior to Sprinter's registration-
http://prntscr.com/67f0ju
And first post and last post on 2014-
http://prntscr.com/67f0ov

Seem to fit into an inactivity gap that it appears Sprintermoon went through (not 100% sure if he was fully inactive during this time period since I can't see his posts from then due to the 200 post limit, however he made no threads during this time and whenever he's usually been active he's commonly made threads.)
http://prntscr.com/67f0tw

Hammered.