One of the things that is great on Hive, is how much data there is on an account. One of the things that sucks, is that it isn't very accessible for most people, and is quite laboursome to get. So just like in real life, perceptions, habits, observations and rules of thumbs get used, rather than using all the data available. And also, just like in real life, everyone is an individual and no matter the behaviour, everyone thinks that they have a good reason to be an exception to the rule.