"Approach NACK: given that drivechains has fundamental flaws unrelated to the exact implementation, there's no reason to distract Bitcoin Core development with this pull-req, even in draft form. What's holding Drivechains back is the idea itself, not the code.

And some fanatics below are impertinent enough to scream: "You need to see a psychiatrist" - while he is talking about tail emission or demurrage as solution to other threat for Bitcoin, i.e. so painfully obvious lack of free market in post-subsidy era.