I think these "dust" transfers already help minnows. It's not a lot but still better than nothing. I think a better way to support minnows is a program where you first receive Sp as delegation that your vote is worth something (0.01) and when you grow and become bigger you have to delegate to other minnows to allow the platform to grow and introduce everyone. And for safety for the program, you can say you have to pay * amount of Steem but receive it back when you delegated the amount you received to another. I hope someone will create a service like this I will definitely use it. unfortunately, I can't code and do it by myself:(