while you are busy looking for listed bounties make sure to check on none listed bounty projects too, remember that Cartesi was never listed and no one knew that they will list on binance.
The crypto space itself is unpredictable talk more of bounty. There are many trading bounty projects which paid at the same there are other which didn't, in the same way there none trading bounties which paid and there are some which didn't. The reason why It looks as if many hunters prefers trading bounty projects is that, the rate of it paying is higher than none trading bounties, many none trading bounties are yet to list till date let alone paying while some have already exited scam. In my own case, I prefer trading bounty projects because it gives you an idea of what to expect while taking the nature of the project and listed exchanges into consideration.