I would like to ask the MMO-Champion Lua wizards for a moment of their time since an addon must be created to help a great number of players.
The purpose of this addon is to help groups carrying M+ keys quickly and more efficiently find keys for their runs. This addon would work like the old OQueue from MoP, but for those unfamiliar, it is similar to the blizzard in-game group finder system, but slightly different. Players signing up to have their key run, or carried, would have to put in their equipped ilvl (I hate how blizzard only shows in-bag ilvl), their key dungeon location, and difficulty. From the carry group leader's perspective, he or she should be able to sort by dungeon location, and perhaps include parameters of which dungeon difficulties to view. This way, players can simply put their key and information into the system and those folks running groups can much easier find keys to run through a much more efficient system (It should be noted that you should be able to send whispers through the system after some level of confirmation, to avoid getting spammed, in case somebody with lots of alt codes in their name holds a key). I understand that, just like OQueue, only those with the addon downloaded could use the system, but if an addon of this usefulness gets created, I have no doubt that it will gain traction incredibly quickly.
Let me know your thoughts and the feasibility of such a program and thank you for your time.
Cheers.