Re: White Van Speaker Scams
If there's the slightest concern about any statements in the original post here being libelous in nature, simply change the wording to say "These are the names of the alleged scammers". This way, it's not legally considered a statement of fact, but the reputation of HTF as being a place for trustworthy advice will back the content of the post.
The best rule of thumb here seems to be, NEVER buy from someone you don't know, and have no legal recourse against if you get taken for a ride. On eBay, use Paypal. Even if their speakers have a legitimate brand name on the box, don't fall for this. If you feel intimidated, carry some mode of protection. Or, perhaps, find somewhere else to shop that isn't frequented by these thugs.