Could you explain how Communities and SMTs will mitigate bidbots and whale abuse?

Because those are the two sore points that get referred to in every steemitblog post.

I like the idea of Communities and SMTs, but for them to become effective, they need the large userbase. so catch-22...no reason for new creators or users to stay when their rewards are less than possible due to the two issues noted -> no large userbase to take advantage of the poternital of Communities and SMTs