Well the author of that thread isn't trying to have him shut down; it's repeatedly pointing out the errors, falsehoods and mispresentations in his case.
At some point during his "campaign" (depending on how long that lasts) I'm sure he will be confronted with this evidence and asked to try and defend his positions.
Of course this will all play into the culture war as the "anti-vax" camp pretty much align with the current opposition.