They promise very high returns. That's why so many people are attracted to these projects.
I clicked on a random token on Pancakeswap and this is what it said on their website:
Cross-chain
Yield Enhancement
zkSNARKs-based privacy
Cyclone is the world first cross-chain, yield enhancement, zkSNARKs-based privacy protocol for all DeFi apps, with the decentralized governance and fair launch
It looks like just a bunch of buzz words thrown together. I doubt most of these tokens are actually trying to build anything. It is all just marketing and people being driven by greed.