We could start flagging people who are using them until people are afraid to use them anymore. But I really do not like this approach, because I know that a lot of people are using them out of necessity, and many of the posts they are used on should be getting rewarded. They are not the problem. The Steemit team are, because their silence is the same as consent at this point. And that is why the community continue to use them.
I appreciate the closing sentence. I can feel at times as though I'm just wasting my time, but comments such as this help me to remember why I'm doing this in the first place.