fair complaint about Audiogon, violating no guidelines, removed

I am looking for Audiogon to not permit sellers to break contracts

That is probably asking too much of an entity that provides a platform to facilitate buying and selling of used stuff. Contract disputes are handled by our legal system. The best you could probably hope for is for Audiogon to ban bad actors but there are two sides to every story and banning folks is a serious business and a slippery slope. Audiogon does encourage good behavior and discourage bad behavior through their feedback system. I have certainly gone the extra mile on transactions to maintain good feedback and I know others here do that too. Back in the day, they used to post some disputes and let members weigh in....that was sort of fun unless you were one of the folks in the dispute.

@french_fries - I have a Tivoli radio stereo set-up and what kills it for me is that I cannot get it to draw in any FM stations unless I am virtually sitting next to the broadcasting studio!
The one or two stations I can get sound good but just about any $30 boom box seems to have a better tuner. Do you have any antenna tricks outside of using the wire antenna that comes with it?

Mine is an older Model One, must be a lemon.  Maybe I should look inside for a loose tuner wire.

For me, the irritation includes the shipping issues as mentioned already, the customs clearance fees, taxes, and delays particularly when purchasing from private individuals.  I will purchase from folks like Partsconnexion or from equipment manufacturers, but after one particularly irritating and costly purchase, I no longer trade with individuals in other countries.  It is clearly stated on my posted ads and is a choice I am allowed to make.