Can someone with some brains take a look at his post history and tell me if they agree with me or not?
Yes. There is nothing to disagree with (other than me having brains perhaps - that's just libel).
Not sure if the original owner still had it in Jan 2017 (there is one post) but it certainly changed hands between Jan 2015 and Nov 2017.
Edit: ask them something
in German 
.