I got curious and did a little more sleuthing on our friend Mushpurple...
There is an eBay user called "mushpurple1" who has, on occasion, bought up
DVC sales, judging by the feedback comments:
"Enjoy your wonderful stay at DISNEY OLD KEY WEST Resort"
"Enjoy your Disney vacation!"
"Pleasure to do business with Enjoy your vacation" (twice, bought two from the same buyer)
"PERFECT EBAY TRANSACTION--THANK YOU--ENJOY YOUR TRIP"
Looks like she may use her own accounts to bump an auction if she's not getting what she wants, and even give herself good feedback:
"Great Transaction! Past Pay and Good Communication!" -Seller: smw (she seems to have a thing for typos, as well)
Google's cache includes one of the older SMW auctions - surprise surprise! Mushpurple1 bought it! (Are we still supposed to believe that they've not the same person?)
Thanks Google! Their cache also has some of the original mushpurple1 Disboard postings that she edited, including the infamous "We were going to be a smaller group, but not we are a larger one" (sic) one. (What kind of large group needs more than 18,000 points?!?!?!?)
I'm pretty sure that this type of shill bidding is against eBay rules. I wonder if anyone's brought it to their attention...
Mushpurple1 bought locations as recently as April, doing a Buy It Now on a
Beach Club stay during Easter. Which was sold by someone with only 15 feedback who appears to be selling several DVC stays... the Squaretrade number is slightly different than smw's but maybe that's the number of the "family children trust"?

The style of the auction is pretty similar, especially the large-font, multicolored, underlined, centered opening text. However, Squaretrade indicates that that person is "Armen Kasabian" so who knows?
SMW's descriptions linked to her feedback... guess that'll have to be changed now that it's private! And how will potential bidders like looking at completed auctions and seeing descriptions like "
bite me"? And I think someone already pointed out that her descriptions still claim that the renter can call MS. It looks like the recent auctions that she wasn't able to change the text on have a private buy-it-now, so we can't see just what userid those were. (That may be a side-effect of having private feedback?)
Then there's the TripAdvisor comment... "I am proud to say that I purchased our rental from a lady on ebay. The rates for this room at our time of stay would of been about $1200-1500, but I only paid $500! What a bargain. I am very pleased. If you are interested, on ebay her seller name is SMW." Legit? Maybe. A shill? Maybe!
The only other juicy bit I could find was her trying to
sell points for $12 a year ago on Talk About Disney.
It'll be interesting to see what happens next. Will she go back on eBay, maybe under a new name? Will she attempt to unload the points? We'll probably never get the full story... but over $02,000 in monthly maintainence fees is pretty hefty! She'll have to do something quickly or that "family children trust" will empty out pretty quick!
Seriously - the whole transfers thing really is a separate issue. With that many points, it's only a drop in the bucket if they grab a small number of points for $9 and resell them at a higher cost. The big bucks come from those enormous BCV and BWV point piles, and that's a trickier nut for Disney to crack. Do you limit the number of concurrent reservations? If so, how many? They don't want to impact the legitimate DVC owner who is planning a big family gathering at VWL and reserves a one-bedroom and three studios for the same busy week...
I think the only really safe option for DVC is to do it on a case-by-case basis, and start individually identifying the problem renters (and I don't think anyone would argue that the Welchslers, with their underhanded tactics, are problem renters), and go after them one by one, rather than trying to make a rule change.