This is a good suggestion. I vote late to reduce the trending effect, but I'm also going to start voting for the comments instead of the main post.

That said, as with @burnpost, Trending is the symptom, not the cause. Stakeholders are voting for these because they believe they are a better use of reward funds than much of the mediocre to crappy content. Sure there is some content that is really compelling and regularly lands above potato or burnpost on Trending, but not that much. What we really need is more of it, to attract more votes and therefore push these down, not blaming the messenger because you don't like the message.