I have some idea as to why he/you was/were kicked.
In fact, in my opinion, there are a few possible reasons for the kick.

Here are some of the reasons:
A) B4lls13ba is your alt.
B) B4lls13ba is your friend.
C) B4lls13ba is your alt and your friend.

The fact that you invited B4lls13ba and then left is deeply suspicious:
Leading me to make the accusation you may well be B4lls13ba.
Why couldn't he himself (if he really isn't you) have protested against the kick?
Okay, since we have no proof you are B4lls13ba i'm going to stop jumping to conclusions.
But even then, the kick was still justified by the fact that you invited a member without direct permission from your clan-superiors, i.e Shigechio;
And therefore, that lead to the untested and unknown member being kicked.

Does that answer your question?