I expect you know many who sit on sites set up purely for the purpose of "discussing and researching" people who are in any way critical of the McCanns, though...........as well as Amaral and Grime on a daily basis .
I was talking about this forum. However IMO the sites which I think you are referring to only came into existence because people were (and still are) so appalled at the sustained cruel attacks made on the family of a missing child.
It's also a fact that scores of damaging myths have been - and still are in circulation - and are still used regularly against the McCanns on sceptic sites as if they were true.
Even on this forum we recently had a poster expressing her profound disgust at the McCanns as a result of seeing a piccie of them both sitting at a table with a huge amount of cash in front of them. As you know - the photo was a fake - deliberately circulated to have the precise effect that it did have on that poster.
Why would anyone object to those myths being exposed as just that....... i.e. Lies.?