If and when stable versions is implemented, I would recommend that every single BLP article that has not been approved be "invisible", or in other words impossible to find via Google or by using the standard search box in Wikipedia and ignored by the mirrors. You'd have to go to an advanced Wiki search and intentionally click an "unapproved articles" check box to search for them. Nothing would be deleted, but we'd vastly reduce the probability of an unsourced, libelous piece of garbage receiving any kind of attention from the general public. If we could approve them at a fairly rapid rate, our coverage could recover to its prior levels within a relatively short period of time, at least when compared to any mass deletion scheme. Or, alternatively, just have a gigantic red banner at the top that says "This article is unapproved. Any unsourced piece of information is as likely to be true as random gossip received from a group of twelve year-olds. Read at your own risk. If this article is about you and it contains ridiculous crap, please remove it yourself and request that an approved version be put in place using <insert whatever method of communication is decided upon here>." I don't think it would be necessary to do this about any other kind of article (unless possibly those about corporations) because of the reduced risk of real-world damage, BLP articles are the only ones I see causing enough trouble to make this worth it.