I am on the fence about this feature. although I want it some times, usually I am able to discern the clearly bad pings from the useful ones. an over ping spammer will give some decent pings sometimes (at least once per game), and that critical information can be worth dealing with their angry pings.
again it comes down to self control for not using a feature like this if implemented, or self control of not becoming tilted from their pings.
However, if a feature like this is implemented, it might increase the abuse of pingings, as it will be assumed that "Anyone who doesn't like it can just mute it".