Other problems that they'd had:
- were inserting referral tokens into the URL when visiting popular websites, so presumably brave was getting a lot of referral credit[1]. In particular it seems to be bad-faith to inject referral codes since Brave really isn't driving traffic to these sites, unless when you type "crypto" it autocompletes "binance.us".
- They've since stopped doing this, but previously tipping BAT to a website or creator meant users would lose that BAT with it basically being held in escrow until the website/creator did their own KYC and redeemed the tokens.[2]
0: https://news.ycombinator.com/item?id=27549826
1: https://www.androidpolice.com/2020/06/07/brave-browser-caugh...
2: https://davidgerard.co.uk/blockchain/2019/01/13/brave-web-br...