it will be hard to find a middle ground here, it's not only hard to know when someone felt insulted, but it is even harder to know the severity of the insult, it's not the same to call someone "lazy", than "idiot", but some people may feel "lazy" as a harsh insult anyway.
IMHO the thing here will be get rid of problematic people, as I said to Iced we don't need to deal with stupid and/or mentally ill people, they make us spend too much time, the only way to enforce a be-nice-rule correctly is knowing everyone's condition, and this is not Mugen Fighters Shrink, so, and go to yes in the yes/no thingy, and don't discuss that much to ban someone who needs lithium on a daily basis.
That’s when I thought, “good grief”
Just ain’t my belief
Until I saw the holes
Inside his hand