If you're interested, feel free to participate. I forgot to follow up after the 24th, and there's still a few days left.
Just 'check-in' is fine (some people will collect rare cards), and for the rest, decide based on your situation.
After checking in, scroll down to 'participate' for the lottery (1+1+3000, meaning 3002 people can win).
The first two tasks require no cost and carry no risk, purely free to participate, and it’s quick, taking just a few seconds each day. The minimum reward is 0, and the maximum is one ETH, so I highly recommend getting involved. Other tasks may require some cost or need to trade contracts, so please check the rules yourself!
DYOR