Some people comment so frequently with such little substance that I would like to be able to mute that user such that "Commented" won't update/increment if they have left a comment. Unfollowing isn't the solution, as the Comments section will show updates if people you don't follow comment on something shared by people you do follow.

To simplify implementation, you could still retain that user's comments, but have them blanked out/obscured unless you "click here to show."