The debate here was never about whether Disney allowed it to happen, but if Disney promoted it or not. So none of the examples you cited have any relevance.
Again I don't deny that there may be some rogue Disney reservationists suggesting this practice, I'm aware that could happen no matter how illogical it seems to me. But I've yet to see any examples of The Disney Co actually promoting this practice. Promoting it, and telling a customer "yes" after they ask is not the same to me.
I did see on the first page that you'd called the throwaway room "cheating" and "evasion." I was arguing that point. If I call Disney and they tell me the practice is acceptable, then it isn't cheating.
In terms of "promoting," many things at Disney are allowed but not promoted. I'll use split stays as my example. I've never seen a commercial or any literature or posts from Disney suggesting that if you can't stay for seven nights at GF, you should stay for one or two nights at GF and the other five at POP, but I think we can all agree that it is an allowed and accepted practice. Disney doesn't go yelling, "Hey! Too cheap to stay at a Deluxe for a week? Why not split your stay and see how the other half lives for a night or two?" If you call, they probably won't promote this, but if you ask about it, CMs will tell you that it's fine to split a stay.
Throwaway rooms appear to be the same. All reports I've seen have indicated that Disney doesn't care if you sleep in a room you've paid for. If you called Disney and asked if you could bring your 36-inch-tall child on Soarin' or shove seven people in a room at POP, you'd be informed this was against policy. If it's not against policy, it doesn't matter if it's promoted or not. It's an acceptable practice. That's why the thread on throwaway rooms hasn't been shut down. If you started a thread asking how to sneak your tiny child onto a height restricted ride, it would be closed in a heartbeat. DIS doesn't allow posts that intentionally violate Disney policies.
I've also seen people asking about whether it's okay to use seven nights of benefits for a one-night stay. But that isn't what's happening. You get length of stay benefits. The parking and EMH are for check-in and check-out day. You get MBs for any length of stay. So it all comes down to FPs. FPs are bookable at 60 days for length of stay. Beyond that, they are a rolling 60, so it isn't the same advantage as someone who is staying onsite the entire time. The rolling 60 days is a benefit that lasts the length of your ticket and is triggered by any length of onsite stay, be it one or 18 nights. So, you aren't using a "week's worth of benefits." You are using the benefits that come with a one-night stay. Now, if you put your finger over the date on the parking pass to get extra days of parking, you'd be cheating the system and using benefits to which you aren't entitled. The only benefit you get beyond check-out date is the rolling 60 days to make FPs. Yes, it puts you ahead of the offsiters, but you are still behind everyone else staying onsite for more than one night. It's like a little "thank you" gift from Disney for choosing to stay onsite for part of your stay.