I personally think downvotes can be a good idea because of spam. However, I think that unlike upvotes, the downvotes should not be weighed. That way, in order for a post to truly be demoted for bad content, it must truly receive a greater number of downvotes than upvotes. I always found Hive's weighted downvote system to be stupid and favoring those with lots of crypto over those without. In that case, because the vast majority of votes on your posts are upvotes, you would not have to worry about WHALE downvotes anymore.