like you said, fisher house is an example of actually booking using awards, presumably same for some other medical orgs
i'm pretty sure i recall seeing orgs SAY they do that in the past, but dont recall whether missions were as specific as fisher house
while homeless can be a tougher issue, media suggests many hotels/apartments in NYC are being used right now..
i was not saying anything about deducting donations of points, and i dont think OP was either