There is no free lunch. Everything has it´s price. In this case you pay with the risk of depositing your coins to a platform which might get rugpulled, also you are rewarded with maybe completely worthless shittokens.
I totally agree with you. There are so many scams that it's almost impossible to discern the legit projects out there. The thing is that here you just need to deposit coins like USDC on the blockchain to get points. I've found some defi platforms on sonic that allow to withdraw to other chains from within the same protocol so I don't think that the risk is bigger than elsewhere but of course everybody has to do his own research.
I once swapped 2.5 $ worth of tokens on ample blockchain to qualify for a 5K $ airdrop. I see a similar potential here and I don't mind taking the risk to park 50 $ of USDC for a chance to get some free lunch ;-).