Maybe he had to lie because he knew you wouldn't believe him? There is always a possibility here.

"So how right is it to find a connection between the Bitcoin addresses of users we dislike and forget about all their trustworthy backgrounds?"

What is mhanbostanci still doing in DT, user is merit/giveaway/trust/default trust abuser and he is trying to convince people that blockchain proof is not solid one, which is malicious claim itself.