Hiya Villain,
I agree that walking away is maybe not the correct thing for YOU to do, but it is certainly the correct thing for ME to do, as I don't have your tact or diplomacy.
I completely accept everything you wrote and that your M.O. is the right way to do things.

Any overall cynicism about complaining, on my part, is largely based on other run-ins I've had, and I seem now to have a mindset, which is broadly based on the following: -
N.B.When reading the following, bear in mind that I AM English....

English (not British) Public Relations "ethics " appear to me, to rely on the Owner / Organiser / Boss firmly defending the status quo (who brought THEM into this discussion) in any situation.

Example:- Take a "bad" glass of beer back to the barman in England.
Stock answer - No one else has complained - Immediate Effect - Complainant isolated - end of story. One Party thinks it has done a good job the other Party feels aggrieved.

Take a bad glass of beer back to the barman anywhere BUT England.
Discuss, and furnish complainant with fresh glass of beer with a chat about how a such a thing could have happened and be avoided in the future occurred. Both Parties feel good.

Moral:- I don't want to be isolated, I want to feel good.   
   
On the censorship issue, some thickies like myself cannot detect deliberate disruptive individuals in the threads, though presumably they have a history of doing so.

Cheers Betsy