The problem with that approach is that if everyone does this, Wikipedia will be dominated by pedants who discourage everyone else from contributing. Wikipedia

The problem with that approach is that if everyone does this, Wikipedia will be dominated by pedants who discourage everyone else from contributing. Wikipedia is a unique resource, it is everyone's resource, we can't afford to lose it like this. Of course, given the scale of the project, some time has to be sunk in the unpleasant task of dealing with users who don't understand how the project works. It will be problematic if no one has the courage to do this any longer...