This is a strange kind of proposal.  I wonder about the mechanism.. you get the $1k in bitcoin so long as you do not spend it for 5 years? If you spend it, then you do not get it?

I did a quickie search for the actual tweet, and I could not find it (which shows why it may well be a better practice to put a link to referenced tweets in this thread so we can easily look further into them without having to work too hard).