[dubswithus]

Are you claiming that ad blocking is a MITM attack?

[GlassKingdom]

No. Brave browser hijacks webpages that you view and injects their own adverts onto the webpage.

The webpage you requested is not the webpage you are shown, because of the man-in-the-middle attack.

[dubswithus]

The ads are notifications. They aren’t injected into the page.

You clearly have never used Brave.