Personally, I think the fastest, most effective and easiest way to "dead agent" anything these days is to call your opponent a Scientologist
If someone refers to oneself as an "x-x," they have identified themselves as a Scientologist.
If someone, particularly in their opening post, states that
I know there are some here with [snip] criminal or hairy sex and drug backgrounds
they have identified themselves as a Scientologist. Seriously, who else talks that way?
And who else
thinks that way? Who else thinks, "I don't need to deal with the substantive merits of your complaint and argument because I've determined you have a 'hairy sex and drug background,' and therefore you lose, and I win?"
Who else, when subject to criticism, has the immediate and Pavlovian response of assuming that one's opponent is a criminal or has a "hairy sex and drug background?" To essentially ask, what are
your crimes? Jeesh, it is right out of the Scientology playbook that we not only know all too well, but used ourselves.
If someone concludes by saying
I think going to external authorities is a big mistake, take a good look at who you are dealing with, the world is a chaotic place.
then, yes, they have pretty much identified themself as a Scientologist.