So we do not get any rewards for using it and all rewards earned is to be donated to publishers only?
If you want BAT Rewards from Brave Browser, you need to register as publisher and do KYC. Next connect your website or youtube channel to your Publisher Account.
Then send your token in your Website/Youtube Channel that connected to your Publisher Account.
Your token will received every Month after you send it and you can move to your ERC Wallet.