Suppose one cannot find a person ignorant enough to be good for mockery. Some folks will go out and create an ignorant opponent, in order to suggest that this one's typical opponent. An example of such charades is the "Anti-Federal Vision Study Bible" mock web site (link).
Doug Wilson posts against this anonymous sock-puppet web site in his recent post here (link).
I presume Doug is just unaware that it is Federal Vision folks (possibly just one teenage boy) that are behind the AFVSB.
It will be interesting to see how long it is before the site owner admits to this being simply a sock-puppet of the FV.
UPDATE: It seems that Doug Wilson has realized his mistake and done part of the correct thing, specifically by deleting his post. The next step would be to denounce the AFVSB as the sock-puppet that it is. At any rate, I cannot recall the last time that Doug got as close to admitting he had blundered as to delete a post from his website. Hats off to him for that much progress. Also, it hasn't been off his web site for long, so he may still go further and post something new correcting his previous error.
FURTHER UPDATE: Thanks to Civbert for plugging this post over at PuritanBoard.
ADDITIONAL UPDATE: David Field (an FVist) calls the sock puppet excellent satire (link). That shows a remarkable absence of judgment. One wonders whether it is his own creation. We'll have to wait and see. UPDATE to the update: David field praises the AFVSB some more (link).
NEW UPDATE: John Halton indicates he is "pretty sure" (!) that the site is satirical (link). UPDATE to the UPDATE: (John Halton (remember him?) tries to make his own satirical come back (link). I think it's fairly lame (and ignores the fact that Federal Visionists, both Doug Wilson (above) and Jeff Meyers (below) have responded to it), but judge for yourself.)
Latest Update: FVist Jeff Meyers mocks the sock puppet (link). It's not clear whether he is aware that it is by one of the FV crowd.