Bad news.

[1Cap]

Well oNe is an official clan, and there is no player called Cap, so there is no real argument as to why someone cannot play as |oNe|Cap, it's not like someone used the name 1cap, they used the name Cap, with a clan tag

let's do a simple sum:
Defend a impersonator
+
Using "#freeundead" as a banner under your name
+
warning points like this:
=
unfortunately you don't pass in the category impartiality