A gauntlet is a process where motivated users self-select.
Getting through the gauntlet is hard, so only the most motivated users do it.
This can be used as a product roll-out strategy.
It can also be used to minimize harm from dangerous features.
The fact that Bits and Bobs is a Google Doc is itself a form of gauntlet.
The gauntlet tests two things:
As the world gets more and more cacophonous, gauntlets as filtering mechanisms get more and more important.
The shorter the gauntlet gets, the lower the average quality of things on the other side of the gauntlet.