So it is very tricky when you actually promoting the scam, before or after it know to be one.
In the OP's case I don't know, did he promoted it before it was obvious scam or not.
Obviously, 1xbit have been scammers from their beginnings. I can see scam accusations or negative reviews as far as 2-3 years ago. From what I understand, OP wore their signature recently, which probably made other DT members think he was promoting an established scam company.
Why would you just wear a signature of a company you have no idea about? It was careless from his side.