Indeed my friend. I also realise that after checking his account. I just wanted to avoid an escalade of arguments with him and chose to simply indicate to him that he was wrong about his statements.
Maybe that make him think a little about the fact that it's better sometimes to think a little before openly criticise something you don't fully understand.
In any case, thank you for your opinion and your suport on that matter. I feel lucky to have such a great follower and steemit friend !