There's one issue that I see as being an issue for everyone, not just multiboxers. And that's in regard to collection quests. Making an item only available to one member of the party is antithetical to the spirit of the game imo. It penalizes a group of people questing together, rather than encouraging people to quest together. Some quests DO drop the item for each player in the group, but this seems to be the acception to the rule. When I first played around in the BE starting area I was floored by the fact that Mana Tapping with one character gave credit to the whole group. Quest design like this would not only help boxers, but encourage that "social" element of the game people always throw in our faces when they find out we box instead of grouping.