He's the One-Man Cyber-Defense Force of Romania.
Ironically he's an expat or something like this (he might uses VPN's, and when banned he sure uses proxy's and Tor). He did his activities on the late Krautchan for a couple of years at least, and now he posts on Kohl by default. He is also a /pol/tard (on 4chan for sure, probably on 8 too). He posted from a couple of countries (at least balls/flags were persistent for a while, but no real proofs was posted he is abroad as far as I know), Netherlands, US, Sweden and now Finland. The Polish ball on that pic above is more than likely a proxy.
His goal is to silence everyone he perceives as enemy of him and Romania, and ofc everyone who isn't fond of him automatically makes them the enemy of Romania too in his eyes. By default all the Hungarians fall into this category.
His postings are very predictable and himself easily trollable and can go all day posting the same thing over and over again with great persistence. The problem (for him) is that he can't resist to spam the contents of his twisted mind everywhere. So he gets banned. Then he tries to ban evade and comes back to post more, and then he gets banned again.
Since one of his main theme is that "Hungarians are gypsies" and this makes him very recognizable, he frequently gets banned after postings as this. This made him think that there's an ongoing Hungarian conspiracy on all over the internet against him (and therefore Romania too). On the sidenote of this: he claimed that I'm being several Hungarian posters (such as the dude on Ernstchan), or other Hungarian posters are me.