Bitcoin payment campaign or bounty is always been better because you do know that you would able to recieve that is something which had a value ...
While this is true, altcoin bounties, while rare and very few, hold the potential of netting you huge amounts of money.
Some projects will succeed, 99% will fail.
But those that survive usually have a great payout.
I remember one altcoin bounty where i sold the tokens from it for over 30 ETH. At that time it was just shy of 1 BTC.
For 6 weeks of bounty, that's an awesome payout
right ,only few projects can survive and the rest will die. If we compare bounty hunting today and before , well i chose before because exciting and huge rewards on every bounty , i also remember a project were i get 2 btc in exchange of a.4 week work.