First of all thank you to all of you for the very nice feedback. The site currently only looks exactly like it is now, because I am very new to this area (web design, development) and because of lack of time.
I think the most important functionality that needs to be changed is the Btc - fiat converter. So if someone fills in the amount of fiat/btc/altcoin it should calculate it live on the same page and not load another page.
The funny thing is, the guy has benefited so much from Bitcoin and Cryptocurrency Community and now he just turns away from us and claims Bitcoin is something different than it has been for almost 10 years.
I think he should be held accountable. The damage he has already caused and is still doing is unacceptable.