This suggestion is just for the heck of it.
What if the MTA team released a client to let you spectate them while they are Beta testing. The people spectating can only communicate with other spectators, and cannot hear what the people testing are saying. (this is for privacy reasons) And they can turn the "allow Client spectators" on or off. (in case they decide to test out new features, and don't want them seeing)
The disadvantages are:
1:People will talk into the chat thinking the Testers can hear them
2:People who don't know what it is will rant "wHy cAn7 1 rUn Ar0unD n sh00tz?"
3:It could lag the server, screwing up important tests
4:People are watching them while they work!
The advantages:
1:Keeps people busy
2:People can stop saying "WHY ARENT YOU GUYS DOING ANY THING O_o"