A comparative test can be of some use regardless of equipment provided that the same equipment is used throughoutFWIW even if your accusations about myself and others were  accurate it is never acceptable to unilaterally tell people to leave Wikipedia You have done so directly to Paravane and indirectly at least one further time I suggest that you refrain from doing so going forward If you believe that one or more users should no longer be editing on this site your best bet is probably ANI