Initially I was very concerned about this because we can no longer travel and I don't want to sell my weeks. After thinking about it I realized how impossible this would be to track and then try to enforce even if they did manage to track the commercial activity.
This threat is being made by a major corporation that can't even get a website to work after 20+ years that I've been using it. I'm no longer worried about their IT Dept catching anyone.
Abound is a huge exchange with 90+ resorts. An owner casually renting their week, or their points, or even using points to book a stay and then rent that stay is harmless. It's also pretty harmless in the grand scheme of things if you have some owners with 5, 10 or 15 weeks who do that with some unused ownership weeks. Some of these examples may be gray areas in the "commercial activity" realm, but pointing the finger at these cases is a red herring.
The problems really start when you have "entrepreneurs" and companies who will rent points from others for cheap and then use those points to book high demand weeks and lease those weeks out at much higher prices. They are probably not even owners (or own 1000 points just to be able to use Abound) and they may be moving around hundreds of thousands of points a year and grabbing lots of high-demand inventory. This type of activity, if it's happening, can dwarf whatever a casual retiree owner might be guilty of.
Here is a current listing from
vacationpointexchange of someone who may be doing just that. I've seen others like this over the years.
And here is a corporation seemingly into this "business":
https://www.tcpointsrentals.com/
(website has a Florida address)
So, this activity is definitely going on...
One day we will likely all get collectively punished and the ability to rent will be much more restricted for everyone. But it won't be because of what regular owners are doing with their ownership.
(and I do realize there is now a 20,000 point transfer-in limit, but clever motivated folks may find ways to work around that too)