Can a mod please kill this parody account?

Yes.

Can we also undead the actual TerryADavis account? With maybe some kind of one-off flag attached to him that says, in not so many words, "this man is a talented hacker, but also a diagnosed schizophrenic so when he goes off the rails he gets a break that you don't" ?

We created vouching for cases where accounts post bad comments as well as good ones. As far as I can tell it works as intended, indeed better than expected.

I think the vouching system is working well. In fact, in Terry's case, it is allowing the reasonable posts he sometimes makes through.

Terry's condition is awful, and I think most of us have sympathy, but the comments are mostly pretty awful so it's a good thing they are flagged.

Thanks :-)