This is mostly an nonissue because it's basically a prisonner's dilemma and as long as you've more than one jerk in this world, all the jerks of the world lose from having to fend off other jerks. For the law abiding citizens all the jerks really do is make the annoying 'queue pop' noise 20 times in a row, but without those jerks your queue wouldn't even pretend to pop in the first place so it's not like you lost anything. In the interest of the game, there should be safeguards (I suggest 30s lockout for declining DF for any reason) just to protect people from their own stupidity, but in the grand scheme of things, the only guys who lose are the guys trying to cheat the system unless they're lucky enough to be doing this while no other jerks are trying the same thing.