No ad blocker used. I don't mind the ads. JREF never fails to load properly, and the ads don't seem to slow JREF down. Actually the only reason I noticed Brave was that an ad for it was pushed to me by Twitter (lol). But since seeing that ad I'm starting to notice how certain sites, particularly news sites or news aggregators are just unusable due to the volume of clumsy, screen-hogging ads that expand and collapse at will. Then, I was searching for a car yesterday, and the first 5 results on Google were ads for cars other than the one I was searching for.
I think I'll stick with Chrome for now.