LOYALCOIN bounty was very successful campaign, they also had a sold out ICO.
I earned like 450,000 LYL and sold it @ 120 sats each.
Total gained : 0.54 Bitcoin
BTC price that time. 16,000 USD/BTC
Loyal coin was a good project and is still active on their development and partnership. Only a few project I joined in 2018 which are successful. AFAIK Midex project, is a good one and even launch their own exchange. Most of the campaigns I joined was either halted, paused or some did not even got to the exchange.