Maybe the solution is for all of us to contact our HOA members and ask them to change the way our own resorts do billing - break the utility fees out of the maintenance fees, and charge them to whoever uses the resort. The only problem I see with that is any weeks that end up sitting empty. Who pays those fees? I can see charging someone who simply doesn't show up for their week, but what of a unit that is deposited to RCI and ends up unused? There is no exchanger to charge, and the owner is expecting not to be charged? Do you build in a factor for unused units, where everybody pays a small increment more?
The problem is the balance of the need of owners who use their weeks vs. owners who exchange. At a resort where are "users" get charged, owners included, it could be a benefit to owners who stay at the resort if the utilities are metered, as they control their own costs. However, it costs more to meter individually, or even just to bill individually.
For those resorts where only exchangers are billed, this reduces demand and thus trade power, even if only by a small amount. Maybe not so small when we're talking about $200+ in some cases. In this case, the owners staying at the resort are being subsidized by the exchangers AND the owners who exchange out.