True, but when you say so but you are still part of the bounty using ERC20, that's where the funnyness can happen, because they newbies will feel confused to believe what you are saying, considering that you are still following the campaign using ERC20 at the moment.
My prediction is (if situation does not improve) that ERC20 token based bounties will disappear in half a year-1 year maximum. In the following situation, best solution is to participate in bounties which altcoin is not on Ethereum blockchain, or bounty reward is exchange token. Participating in bounties with erc20 token reward hunters risk to become long period holders.