This is an oft-occuring practice which needs to stop.
More often than not it is simply incorrect, potentially harming both the reputations of the accused AND the accuser.
IF there is a suspicion of copyright issue/theft the correct course of action is PRIVATE notification to the site's Moderators/Admins.
NOTHING else is acceptable.
Failure to observe this requirement has the following penalty:-
First strike is censure.
Second strike is reduction to Visitor status.
Third strike is permanent exclusion from Wincustomize.com