There is an internationally famous and very controversial London artist named "Banksy" whose work is coveted and sometimes brings the owner of one of Banksy's tens of thousands of Euros or Pounds or whatever they use this week over there for money.
But some people still hate Banksy. Why? The trouble is that Banksy never paints his work on his own canvas but instead on the walls of strangers. He is what is euphemistically called a "graffiti" artist.
Maybe "Banksy" should post more of his masterpieces on his own walls or canvas (he does so these days) and maybe some people on OS should post their comments on their own blog instead of on others where he's not welcome.
People have the right to have their walls clear of Graffiti, and others have the right to view it as invaluable.
But the artist has only the right to paint on his own walls.
It's a privilege to paint on others!
And privileges can be revoked without fault at any time.