I went over to the TPAS board and read a little of the "throwaway room" thread. OMG, I'm glad some of those folks don't post over here.
This concept is nothing new but the Magic Bands has given it new life.
If Disney management were smart they'd put an end to it. Because they're losing money if they knowingly let it continue.

Pay attention.
I have no problem with people paying for a campsite but not using it. But perks such as EMH and Fast Pass are benefits for GUESTS STAYING ON SITE. So to me, Disney could stop it by allowing such perks beginning on resort arrival day and ending at midnight of resort departure day. If you book a one night stay, you would only get two days of perks (checkin and checkout days) and if you booked Fast Pass rides beyond those dates, they'd be cancelled because you are no longer an ON SITE GUEST. People try to clutter the discussion by saying "oh I have a 7 day ticket" or "it's a 3 day ticket I can use over 14 days after first use".
Baloney. People do split stays all the time.
Now, you say to yourself, "Ed, why would management want to control this?". The answer is simple. Greed.
In the throwaway concept, folks say "that's an extra night of revenue Disney wouldn't have otherwise". I'd say those people are near sighted. I would ask Disney:
- how much are those folks spending at the Meadow Trading Post? (zero)
- how much are those folks spending at Trails End or Crockett's Tavern? (zero)
- how much are those folks spending on recreation like boat rentals, golf carts, or Segway Fort tours? (zero)
If management wants to allow this, I offer the following advice:
- create a "virtual loop" (call it loop 2900) and book these throwaway room folks there.
- that frees up the site for us who want to actually come in and spend money.
- Disney gets my bucks as well as the throwaway room revenue.
- if they book the throwaway folks into a real site, that keeps me from booking and spending cash. Just sayin'

. Duh
I really pity the people who use this strategy. Disney ought to tie the Magic Bands to the parking gates to control the abuse of the free parking for on site guests. The EMH (and late) parks are typically more crowded so never recommended as the "best park to visit that day".
Limiting the onsite perks to the dates a guest pays for an onsite resort "room" is honoring the promise and prevents abuse. It opens up availability for us campers wanting to actually show up and spend dough over several days.
If you speak the language the Disney management understands, we can get our way.
Bama Ed