@Sebastiano I was concerned that you felt that I was picking on you, but I was not. I was concerned that felt this because you said that I was being too critical of your answers. I am sorry if you felt I was being critical of you, but I assure you that I was not. I have often left a comment on answers which others have responded to by down-voting. I thought commenting may be more helpful to you, but all I have done is upset you. ...
... As I said, chat is public. I responded to a message here from @CarLaTeX which responded to a comment I'd made on one of your answers. I don't know whether you will understand what I've said, but I'm afraid that I cannot say anything at all in Italian :(.