There are controversies around Brave itself and also its CEO, Brendan Eich (also inventor of JavaScript and also former Mozilla CEO).
- Brave was altering search results by adding crypto redirects to links. Source.
- Eich was forced to resign from Mozilla CEO because he made donations against gay marriage. Also, he basically is a covid conspiracy theorist. Source
You might not care about a company's CEO behavior, as long as they do a good job. I usually do not. In this case, I can't help but feel that the whole project is kinda shady.