"donthnrmepls" is a high stakes heads-up NLHE specialist who is from Germany but has kept his identity hidden from the public; in fact, there is very little if any information about him on the internet.
He is another German pro who has specialised in HUNL and like other high stakes German pros, he has stayed anonymous for as long as possible due to legal issue and taxation of poker in Germany. He has not moved away from Germany to Austria or the UK like many other German players have.
"donthnrmepls" solely plays NLHE online and always heads-up. He can often be seen sitting at the high stakes tables at stakes up to and including $200/$400, and seems to be game selective as he won't play the "top HUNL players in the world". It means that he has to wait and be patient until a player who he feels he has an edge against is ready to play him as very few weak players are willing to play that high. He generally plays $25/$50 - $100/$200 HUNL and it is surprising to not see him play short-handed even at NL.