No all the comments are not nasty but many of them are.
Why would I think it is nasty to hold a different opinion?
They can express their different opinion but it will not change whatever will be the final conclusion of the investigation.
Their motivation for their behaviour is beyond my ken.
Whenever they are mentioned the words 'nasty' or 'vile' crop up nevertheless, even if they are just expressing a different opinion. Other favourite words seem to be 'orchestrated' and 'campaign', suggesting group activities.
I think that reminding the media and their readers that another point of view exists is a good thing. It might concentrate the minds of those investigating if they're aware that a lot of knowledge exists about the case amongst the general population. Any solution offered will have to account for that knowledge or the 'final conclusion' will be greeted with the same hilarity that Redwood encountered with his rather pathetic narrative about 'crecheman'.
Perhaps people are frustrated by the failure of the UK media to ever report the case in a balanced way? That might motivate them to point out the facts as they see them. If the facts are wrong the media could take on the task of correcting them, of course, if they so wished.