No verification. Could easily be an imposter.
Given that the post has almost reached payout, I would suggest that if it is real, once Stefan has posted some verification to his established social media then he can do another introduction post. I'd also suggest paying attention to answer questions. Just dropping an intro on here and running away will not get a good reception from the Steemit community.
OK. Thanks for the answer reading the other comments looks like it might be a scam attempt.