Reader may be agreeing with the trial judge, who said it could only be Sheila or Bamber. With all the forensic evidence showing it was not Sheila, stance changes have to be made.
There have been post trial suggestions that RB, AE, a random stranger, a hit man or SAS style hit man team committed the massacre. These are unproven.
TomG said his 27th May post was his 'last hoot' after his innocence posts were taken apart & Sherlock said this month 'it was not possible for Sheila to have shot herself'.
But not everyone will change stance. JackieD bases her support on Julie's actions rather than forensic evidence, while Roch constantly & Bill once a year saying they have undisclosed evidence is very persuasive to Susan.