Heard of it before but didn't realise they were launching it now and trying to go big. It's meant to be a stablecoin if I remember correctly although the white paper doesn't directly say that. https://manncoin.im/wp-content/uploads/2020/08/Manncoin-Whitepaper-Version-2.3.pdf It's generally on the light side which isn't great.
Putting quotes by Bill Gates etc on the site is silly of course but there is somewhat of a space for a proper stablecoin I believe, and I and others were thinking about this in the past. This seems like a normal coin now, though, and the risk of course is that nobody is using it and the currency becomes (or stays) worthless. Anyone can create a coin and for users there is also the risk of someone doing a pump and dump. I also really don't like the way the people behind it seem to be hiding. Not a single name to be found on the site. By all means download the wallet and use the airdrop, but otherwise I would proceed with caution.