I personally dislike it, I sit with some friends at college when I can and it is all nice, but then when some of them are away all I hear is bitching about the people who are suppose to be their friends. In some ways it could not be seen as bad but if you are friends with someone why do you seem to hate it. Surely it is just not a good friendship for you to be in if you don't like them.
I never talk about people behind their backs, or rarely at least. If I need help about the person I will ask about them etc. and I may talk about them but I never say bad things as they are friends so why would you? I find myself uncomftable being with some people that will say hateful things and then being around the people who had them said against them, I keep it to myself of course but when I see them with each other later I wonder why they hang around with each other still.
I am sure I get things said against me that I don't know about, it is bad and I don't want to do the same thing to others. If you are friends why would you bitch about them is what I don't get.