Proxies are great, but the problem to solve there is the IP based banning, which can be only solved by paying for reading a small amount of money and delegation.
What I'm doing (rbr.bio) is a way to at least know where to read from: you can get the metadata or even just the write relays (just added now as JSON :) ).
It means that the clients just have to read from a few of the write relays to get the data.