The thing that makes the Internet a darling when it comes to hobbying are the things that also make it a source of frustration when it comes to trying to restrict or arrest the movement of illegitimate goods.
For instance, there are goods circulating through comic consignment houses and auctions that trace back to scandals from over 6-8 years ago, and in some cases even longer. Which was one of the reasons behind my suggestion that we have some mechanism to lookup serial numbers as people will get the idea that this is merely speculation, and that graded items are legit until someone "proves" them otherwise.
Now, while I think giving Vectis, and BT and even auctioneers who are known to sell this type of stuff a heads-up, there is no one at the moment that is going to stick out their neck and sign their name on a document which suggests that these are "counterfeits." Just ask the good chaps who tried as much with the Scott McWilliam's scandal - collateral damage is a very real problem in these situations.
Having seen this play over in the vintage comic hobby, the best bet we've got (at least until we have 100% ironclad, uncontestable proof) is a concerted community response. Something like a thread which lists questionable/suspect goods found in the wild, with a brief summary of the allegations and why these items should be frozen and not sold, and when a piece surfaces, someone takes the initiative to notify the seller and post a link to their auction. Of course you're still going to get some renegades who will ignore the requests, but anybody who values their reputation will abide.
There is another angle in the short term which could be useful to this endeavour, but it will require someone who will inspect Toni MOC's and put their name to a document suggesting Toni was selling "fakes" or "counterfeits." I've tried this and unfortunately haven't turned up anything for the time being so if anyone has any suggestions on this, or someone is willing to volunteer, then please chime-in or contact me as this could really open up some possibilities.