Unfortunately that has zero cryptography in it, and reads more as a fluff piece, so not really relevant.
I've read his occasional emails to the dev list over the course of 2014 as they came in, I only made the connection after I put my post up. Sending emails to the Bitcoin dev list certainly doesn't make one a cryptographer unless those emails are cryptographic in nature, and Zeuner's have not been. Let me provide a contrast by showing a conversation between two actual cryptographers,
Andrew Poelstra and
Adam Back. Just in case anyone's credentials are in question, Adam is the creator of
hashcash, which is the proof-of-work system (not algorithm, but the actual system) that Bitcoin and virtually every other cryptocurrency uses.

Yes. I know who Adam Back is.
No I do not know who Satoshi is.
No I do not know who fluffypony is.
Zeuner? Some people know who Zeuner is
By all means fluffypony you r entitled to undermine his credibility.
U r equally entitled to ignore his review. Altho it behooves u to do the opposite.
G'day (enjoy the BBQ)
n.b playing with fire now: ur credibility is established how? Can u link me to ur CV/linkedin?
thx
p.s. i like how elusive Isidor is. Hallmark of a crypto-dude imo. He lives in Leipzig Area btw
