I think this could give you answers :
Rules against self-tipping only apply to our promotional BAT token grants. You are allowed to tip anyone (including yourself) with BAT that you earn via Brave Ads, or BAT that you self-fund with your own money.
We suspend accounts that are found to be in violation of our Terms of Service or Grant Tipping Guidelines, here: https://www.reddit.com/r/BATProject/comments/bhlo4k/faq_brave_rewards_ads_support/
If you search on community.brave.com or spend time on our Telegram, you will see the extent to which we enforce these rules in order to protect genuine users and creators. In other words, the way we deal with this kind of fraud is by enforcing our ToS and grant tipping guidelines, and suspending those who abuse publisher accounts solely to withdraw BAT grants—which are meant for tipping real content creators—to themselves, especially if they use coordinated or automated methods.
Source: Reddit - Posted by bat-chriscat (BAT Team) a year ago.
Link to that post > https://www.reddit.com/r/BATProject/comments/bqih0p/how_does_brave_deal_with_people_sending_bat_to/