Its just not the same anymore.. airdrops in 2016 and 2017 could have been insanely profitable, but like you said most are scams or never really went anywhere.. now thats not to say the market can't improve but its very unlikely something dropping 90% during these turbulent times will be able to recover.. stick to bounties or just trading, it'll be a lot less frustrating, and a lot less giving out of your personal data. (even if its just email)