People can be unbelievably rude when they feel an opponent is playing too slowly. For example, an opponent the other day said "TIME!!" to me when it would have been easy enough to say "time please." FWIW, I"m not a slow player, there was plenty of time, and I said "thinking" prior to the remark. Admittedly this sort of thing is a perennial problem in f2f bridge as well as online. I do, however, think good manners make the game much more enjoyable. Perhaps BBO can do something to encourage politeness (?).