That's possible- it may be that the cost of doing this effectively is not worth the gain, or that there is a less intensive way to solve this issue. However, I think there could be benefits to a tiered structure- perhaps even have the levels be read only for those not there yet- so everyone can read the high signal to noise, but we still make sure the protect it. I do know there is much evidence to suggest the prestige among even small groups is enough to motivate people to do things that normally would be considered an absurd waste of time.