Tech Geek Brave reports 15.5M+ DAUs and 50M+ MAUs at the end of 2021, up from 24M MAUs at the end of 2020, 10M+ mobile downloads in 2021, and Brave Ads revenue up 4x YoYBy Daniel HarrisonMarch 4, 20230 brave yoybrowser daus maus 24m maus Brave reports 15.5M+ DAUs and 50M+ MAUs at the end of 2021, up from…