Seriously, when you need to throw 80 million of get_blocks on a public API node in one week, you are doing it wrong
That's exactly why I'm working on my own Web API for SteemWorld. Since there are more and more people using my tool on a daily basis, I think it's an important step for me. I also like to have as much account data as possible in a single row on my own relational db so that I can minimize the load needed for showing data that would otherwise need 10+ calls executed on a public node.
Your node is still one of the fastest I've found so far and I use it as a fallback if the other nodes should be not reachable for some reasons. I think in future we will definitely need a few more public nodes and I hope someone is going to do something in that direction like you do.
Thanks for all your work!