But you should know that escrow payment for the bounty program isn't completely safe-proof. If the group in charge of escrow payment has a dubious reputation or easily blows to the project team's demand, you will meet the same fate of no escrow payment.
Things can still happened even there's a escrow service, though the chance of being paid is much higher with escrow especially if it's really a
reputable person. The team will likely be obliged to let the escrow to hold allocated budget.
If a project can't afford escrow payment, should be at least hire 3rd party bounty managers to make sure bounty payment under good hand when distribute.
That's still not a guarantee, bm only relies with how the developers will distribute the rewards, if the team will runaway there's nothing that bm can do.