The communities definitely need the support to get users to use them and hopefully there will be a price rise coming at some point that allows for a wider spread outward of value.
I do see that many of the authors (myself included) who get support will eventually look for curation more and post less. It will also happen naturally when the quality and diversity comes to take attention away from those who have been getting it til now. I have always known my own time to earn is limited (I am not dead yet), which also makes me want to power up and support those to come :)