I don`t think I am closed minded. There is quite a bit of ground between talking a lot during a match, and a little small talk while you are at the table. Maybe something was lost in the translation, but it sounded like you were saying that you do exactly what this thread was started about.
I understand that you are probably a nice guy, that would never shark anyone on purpose. I have a good friend that is the same way. He is just a friendly person. He doesn`t do it on purpose, but I have saw him take people out of their game many times, by talking to them. I have heard people complain that they hate playing him, yet no one calls him on it because he is just being friendly.
Many people will get angry at an intentional shark and use the anger to fuel their competitive spirit, while the friendly guy that chit chats at the table can sometimes take you completly out of your game. Kind of ironic if you think about it.
My point is, you might think it`s ok because you are not being negative, but it could still be having a negative effect on your opponent.
That`s my point of view on the matter. No hard feelings. I hope!