Nah, I don't think that someone are willing to risk at this point.
Agreed a wannabe financial technology asking for .05 BTC to invest to them seems to be ridiculous. Look at his personal message "MMMExtra-The Right Step To Your Succes !" they named their company on a Russian ponzi scheme, this is a big no-brainer for me to stay away such kind of soon to be scam. And he is saying that they "will be adding new features that do not yet exist" which only means that they should be routing to have a patent for it which they have not mentioned anything.
MMM created by Mavrodi is indeed a big scam i remembered those days where lots of fools believe out with such return on monthly basis and lots of them are wrecked and realized on the mistake they have done.
I didnt expect that it do still moves upto this year. Sad for OP which he hadnt able to hide those info on his sig space and personal message which we can presume he do promote the same thing or upcoming project.
This is like more a begging to me rather than a proposal.Why? asking 0.5 btc for investment without having a proper or formal introduction of projects composition or what it all about.