My 2 cents:
I have never seen anyone representing their company be as hostile on a forum as the now banned user DVD-Ranger. If any normal user had shown such behaviour, that user would have been banned a long time ago.
People were sceptical of the software in the beginning, which DVD-Ranger took personally and started attacking people and calling them bad names.
Only after DVD-Ranger opened war against everyone who didn't like his software, did other users here start being hostile in return. He was not the innocent user being bullied by others, but rather the instigator of hostilities. If he had been stopped earlier, other forum users might not have developed such an antipathy towards him and his company.
Behaviour such as that displayed by DVD-Ranger is poisonous to a forum, and it would have been a bad decision to let him carry on.