I am paying for it out of pocket. Its free for you to use, but not for me to host it :)
Good luck with your future mim data sniffing or selective takeovers, I guess? Not sure what the business model would be, unless you’re planning on injecting ads, which would be funny.
The question is, how is it sustainable? Nobody likes being rug pulled. Why not charge money for it?
I'd rather pay a few dollars for a service that will be around 5 years from now, than pay nothing and have to deal with churn.