I think you misunderstand the purpose if the thread...
It was clained that the purpose of the thread was to understand why sceptics still believed the McCanns were guilty of something despite two live police investigations being in existence.
The assumptions are;
That all sceotics believe the McCanns are guilty of something, and that the existence of two police investigations make those beliefs untenable. I find that illogical for a start. In my opinion the McCanns neglected to ensure the safety of their children. They weren't charged with the offence and never will be, but my opinion stands and nothing the police do or say will change it.
Moving on, whatever sceptics said was rejected. They were no longer being asked what they believed, they were being told. They were told what they (all) believed and when, how and why they reached those conclusions.
It may not have been intended but the thread became a litany of what supporters believe sceptics believe imo.