Thank you for sharing this feature with me; I wasn't aware it existed. Since I'm now aware of this functionality, I no longer have an objection to the current system. It's definitely a happy medium. Cheers.Person C can shout out Person B. Person B can now comment on Person C's shout-out. And Person A can do fuckall about it.
Yeah, we oughtta have a primer on mute/ignore/hush 'cuz nobody really understands it except the people who interact with it a lot. Which, on the one hand, gives the people who need it a leg up. But, on the other hand, it antagonizes the people who will likely never interact with it.
It's a back-door more than a feature - certainly didn't come about intentionally - but it's not a bad thing, I don't think. It also makes the confrontation less direct, which I think is good: even if B comments on C's shout-out, A won't receive a notification on it (unless B is an ass and calls A out).