#1: Yes. Certain fights aren't going to happen in this guild currently without these boxes, however they shouldn't be considered full raiders. IE Rogues or Monk raiders should get priority on an upgrade over a bard box that has box raider status.

***Could cause problems when recruiting, because new recruits/raiders will be at a severe disadvantage in DKP over boxes***

#2: No. Punishing people who might have a legitimate upgrade in an item just because the item can be sold makes little sense to me. The entire point of a DKP system is to allow individuals and the guild to dictate the distribution of loot how they see fit. What if X item drops and person Y wants it but doesn't have the DKP for it because of the minimum DKP requirement, simply because person Z decided to be a dick and big them up on another upgrade? I'd like to think these things don't happen in guilds with a good need before greed attitude but it's inevitable in a DKP system. Another example would be Plane of Sky no drop pieces. Those things can totally be MQ'd and some of the MQs sell decently well. Why all of a sudden would we start charging people more DKP for stuff that has routinely gone for 1 DKP?

#3: No. If an item isn't going to be bid on by raiders I personally feel open rolling is the way to go, regardless of if they are going to sell the item or not. This should in my opinion be done only after no raiders have decided to bid DKP on the item as an upgrade. It would also be really hard to track if someone is going to use an item for an upgrade or just bid normally and then sell the item. Maybe someone bidding DKP on a cloak of flames that they would "only need if I can replace _____" item and then a few weeks later everyone forgets about the cloak and the raider has sold it.