On top of this, as far as I know Brave gets the tokens they distribute to users by buying them from the open market with normal dollars they get from their norm

On top of this, as far as I know Brave gets the tokens they distribute to users by buying them from the open market with normal dollars they get from their normal advertising business. That is: There is always a buyer, so if you get tipped BAT you should be able to sell them if to no one else, then to Brave. Real ad dollars, to content creators by users tipping them. It's still an Ethereum based coin, so there's other options but as far as cryptocurrencies go, it's far and away among the least scammy ones I've seen. Most others are either blatant scams or their value is entirely based on speculation.