Why is Uphold ripping off Brave Rewards?

You saw what I said at the end, right? And what lowner mentioned in the reply prior? On chain is coming. Check out PSA: Current and upcoming changes to Rewards and Creators

Or just can jump to https://brave.com/rewards-solana/

This will go straight to whichever Wallet you want, even Brave Wallet. And Solana fees are a lot cheaper than Ethereum. As such, we’re all quite excited about it. Things just are slow moving and eventually getting there.

Thing is, nobody has a timeline on when it will be available for everyone. They are doing small test batches now and will gradually be sending invites to people to join the on chain Rewards. It is being worked on though.