On banning nasty members? Everyone has individual differences, they may or may not complement with others. If one has positive intentions, this will be manifested in positive comments / positive dispositions.
I just hope that those who intentionally make offensive and/or negative criticism have that competency of perceiving their own weaknesses and shortcomings and reflect on how this impact to others...
However, should an offender is repentant to what harm he/she gave to others, then we have to be forgiving... then there is no banning.
The most important thing is to communicate by listening... with your heart and understanding our imperfections.
There are only two types of people in this world... it is being BAD or GOOD... it is not racial... it is not gender... it is not color... it is not physical attributes.. it all about purity of good intentions.