Actually, it’s a reduction because the ads are in categories you are interested in, which is done on your machine via machine learning.

Right now, you don’t have to interact with ads to get paid, though that may change in the future.

It’s way less intrusive than pop-ups and full screen interstitials, which I hate.

Disclaimer: I’ve been a Brave user/tester for a while.

Edit: if you decide to opt-in, you decide how many ads per hour you see. That seems like a reasonable trade-off.