Upgrade, sadly there is some truth in what you say! The behaviour on line of some our
so-called professional collegues is, at best, disappointing. However, I disagree with your suggestion that that it should be shut down.
It is up to those of us who disagree with this sort of behaviour to stop it.
Remember it takes two to tango! It is all too easy to rise to the bait when someone makes a fatuous but hurtful remark. Replying, albeit justifiably, only serves to perpetuate the argument and encourage the originator to carry on.
I have benefited from some very useful info provided by well informed and generous contributors. It would be a great loss if we were to prevent that from continuing. Yes, there is also room for a bit of fun too!
We should remember that all rumours are bullsh** until they are proven.... at which point they cease to be rumours!!
Encourage the good and ignore the bad!