They always act like that because the dev already got what they wanted to us and they already successful so some of devs doesn't give a fair share to the bounty hunters. Also the KYC ask is so discouraging but we don't have any choice but to submit since if we insist they will not give our share.
Also before almost all pays that's why I'm so eager to get more translation since the income way back before is so good compare to now where almost all of them are scams but there are few of them really pays especially with the current DEFI's but still the risk to not get paid I huge for others thinking about joining it by now maybe they should not think much about it and just do the task and forget and if they pay than it's a bonus for us, but currently I'm not doing any bounty but thinking to comeback but let see if we can gain again for some bounties here.
Your said was true and correct, the majority of the Developers not all I think in my own view and assessment only are abusers.
Because, I was also a bounty hunters and I have encountered a lot of projects campaign were in the end they never give the rewards. They've robbed what is belongs to us, and abused our effort because they know that the bounty hunters are in need financially.