Thats dumb if they just expire or can only tip developers.
And annoying if you have to keep on withdrawing your earnings from watching ads and from referrals.
I am not a fan of all Brave browser reward system that have many countries excluded from ads rewards.
Better alternative is BitTube browser, where your rewards does not expire and you can control adblocker much better.
How long have you been using BitTube browser?
Can you share your experience like browsing speed and RAM usage?