I have never had a problem on Audiogon. Everyone has been courteous and efficient and no deal has gone sour. I really do believe if you are polite and do what you say, when you say, you are more likely to be treated in the same way.
What you have to watch out for, is an A/C being taken over by a fraudster. That happened to me on E-bay about 10 years ago, my password was changed to shut me out and about $1000,000 of kit, including BMW's, Audi's, high end speakers, put on sale with a 3 day auction. Luckily I jumped up and down and waved my arms and eventually E-bay stopped the transactions.
What you have to watch out for, is an A/C being taken over by a fraudster. That happened to me on E-bay about 10 years ago, my password was changed to shut me out and about $1000,000 of kit, including BMW's, Audi's, high end speakers, put on sale with a 3 day auction. Luckily I jumped up and down and waved my arms and eventually E-bay stopped the transactions.