We all know that the blockchain itself guaranties anonymity on its own and now Brave browser want's to integrate it into a vpn service creating a fully decentralized virtual private network which means you don't have to be worried about your data being sold by the vpn providers.
However we all know that everything has a good and bad side and one of its disadvantages is that it gives people who perform illegal activities more freedom. What do you think about it? Do you think it's worth it or not?
I'd rather use Tor, which can be done even from that browser. And with Tor, you have access to resources not found anywhere else, as people running Tor nodes can host their own content, away from the clear Internet. This content is free of censorship, because while its possible to detect Tor users, its impossible to determine what content is seen or provided by each particular Tor user.
Tor was designed for this specific purpose, while VPN is not. A VPN is not a privacy tool, and never was. You are using the wrong tool for the job, it might do it more or less, but not as good (think: hammering with a wrench).
And guess what? blockchain by itself DOES NOT guarantee anonymity. Quite the opposite, in fact, it preserves your traces and prevents you or anyone else from erasing/changing them later.
Imagine if your browser used a blockchain to keep track of your history. Goodbye to clear history, ad marketers rejoice!