Aron's posterous

Judge everyone favorably.

  This tenet is generally regarded as a moral obligation.  It is a principle that our sages laid down that we must abide to.  Looking past the surface and judging people favorably and with a positive eye is difficult.  When things appear to be one way - and we are always sure they are that way - to look past that is hard.  Nevertheless, our sages command us "Judge everyone favorably."  Difficult, but you must obey.  Demanding, but do as we say.  It is our moral obligation.

Perhaps another idea.

The way that we look at people effects the way that we act towards them. 

  Viewing people positively empowers you to be expressive towards them.  We are attracted to them.  The lines of communication are open.  Our positive view of them encourages connection and facilitates conversation. 

  However, when we view someone negatively we are no longer able to be expressive towards them.  We are repelled by them.  The lines of communication are closed.   Our negative view of them hinders and stifles connection.

  It is preferable to have open lines of communication.  When communication flows than even when something is amiss it is rectifiable.  When lines are closed than you never know what is happening behind the door.

   "Judge everyone favorably" is not merely a command but also a recommendation.  "Judge everyone favorably" is not only laying down a moral principle with which we are obliged to live by, but also giving guidance on how to live a happy life amongst the people around you.  If you want to be able to communicate easily with people around you than "Judge them favorably".