Payment by Stablecoin is only good if the bounty manager limits the participants. It will help the participants get a good amount of money from their work, if they are not limited to the participants then I believe there will be a lot of subscribers and eventually each will only get a few cents
some managers have already done that. with definite allocations which will not be too large, restrictions on participants will inevitably be imposed. not only by payment using a stable coin. those who pay with altcoins that are already on the market also limit their participants to keep the rewards they get.