This is the correct answer (we run this bounty). Contests can be legally complex, there are only so many place we feel comfortable running it from a legal POV.
you can use Algora.io (it’s open source) to cover 120+ countries for the bounty payout - it would be a fantastic showcase on our website (founder here)
we can create a page for you like we did for the $25k Rust Prettier Bounty https://prettier.algora.io
lmk if interested ioannis@algora.io good luck!