Altcoin bounties are more profitable than bitcoin paying bounties, you can avoid scam altcoin bounties with good research, you can follow reputable bounty managers as well, the choice is yours, we have bubbalex, Hhampuz, btcltcdigger etc follow popular bounty managers and you will have less disapointing results
btcltcdigger is no longer managing bounties. He had switched to participating in bounties that pays in bitcoin, because it turned to be more profitable and easy than managing bounty or participating in bounties with token/coin payment.
“Good research” - tell me how you have chosen you bounty? Think it would be profitable?