I hope that kind of idiocy is over and done with now.
I can see your wanting to condemn the Protestant poster equally with the vandal, but when you associate all non-Catholic posters on FR with complicity in vandalism, you're going a little too far off the deep end.
I think you may be trying to demean or belittle this incident, and your reference implies your attempting to diminish something that really should be discussed and addressed.
Its also worth noting I checked the Diocese and affiliated web pages for that area and couldnt find any references to the incidents last year your referring to.