I would need more information than the OP has provided since according to him "
Some of them involved proposed violations of banking laws" and then after reporting to audiogon the items are still for sale. For the OP's information to PROPOSE to VIOLATE a banking law is a VIOLATION of banking law and if audiogon did not report this they are also in violation so maybe the OP doesn't really understand what he is claiming.
Do you trust Audiogon?
Recently, I came close to purchasing a five-figure item on Audiogon. After quickly agreeing on a price, the seller did several things that caused me concern. Some of them involved proposed violations of banking laws, and others were clear violations of Audiogon's own regulations. I realized that this wasn't someone I should trust, and I might be receiving a box of rocks or a broken item, and I'd never again hear from the seller. I killed the deal and reported this to Audiogon. To my amazement, the seller's account and his listing are intact.
How does this protect honest buyers from predators?
How does this protect honest buyers from predators?