>Out of curiosity, is your pov coloured by the fact that Michel's company is on the internet instead of bricks and mortar? If his business were bricks and mortar and someone came in and started swearing and verbally abusing people, would you still feel the owner had no right to kick him out?

I don't your analogy of Nick walking in Michel's workplace and swearing works at all. Michel is running a salon, where people come to talk. Sometimes, conversation gets heated in a salon. You don't throw out everyone who lets a swearword or even an ad hominem argument get by; you throw out the people who do it repeatedly.

Tamar