I think the chillul Hashem argument is irrelavent at this point because this was not Dan's reasoning for disaproving of the wiki. The "it will get killed" argument is more relavent because that was Dan's reason.
I just don't understand why publicizing this specific detail about the DSU will cause it to get killed, while we have a whole thread discussing selling a DSU and we are not concerned about Hyatt changing their T&C about a second guest in order to prevent us from taking advantage of them that way.
I understand that people may assume that they are entitled to kosher breakfast, when they are in fact not entitled at all, (and that this may cause it to be killed.) However, are we entitled to use the DSU in a way that it is not intended? If someone gives the managment a hard time at checkin becuase the managment understands what is going on and demands that the other party show up, who is to say that this won't cause a rucus in the higher echelons of Hyatt and cause a change of the T&C? (It has been reported that Hyatt has already cracked down in this manner in regards to the anniversary night)