He is OBVIOUSLY German with very little English. Indeed I believe to even post at all in English, he runs EVERYTHING through Google translate. Which does a poor job at the best of times. I actually speak German and even I can't understand what he's saying 1/2 the time.
So for me personally, it would be better if he simply posted in German. HOWEVER, this is an Australian based English language forum and hence he attempts to communicate and contribute in his own manner. As a holder, he has just as much right as you do.
You may, or may not, know that TGS is also traded on one or the other of the German exchanges if I'm not mistaken. (pretty sure - if not, it certainly has a _big_ German following for some reason).
So, don't be quite so impertinent and cut him a little slack. He seems to have been around a bit longer than you.
If you want to understand what he's saying try running it back through Google translate in the reverse direction.