Yes, encouraging downvotes would be a great way to regulate the "trending" sections. And it could make bidbots unprofitable for low-quality posts.
Sort: Trending
Indeed.
However, there are two problems, which won't be solved by changing the name from "flag" to "downvote":
- The fear of retaliation (so only a few people dare to flag at all - these ones often actually really like doing it). I see no reason why this would change?
- The abuse of the flag option when users with much SP follow every post and comment of their unlucky "victims" to flag them whatever they write.