User blog comment:TheTobarMethod/The New PBE/@comment-18521310-20131023101303

I think they should do it much like many other beta environments: accept applications. This way they can accept or deny people based on whether they can communicate clearly (important for feedback), game knowledge, beta/software-design experience, etc. They'll have a smaller pool of testers, obviously, but at least they'll have some assurances that most of the testers can provide good, useful feedback.