Of course statements like that from people like that help a lot for bitcoin to grow even more.
When I become rich and powerful like Billy I'm gonna do the same!
It is not all about the name of Bill gates or the status that he got because it is all about bitcoin which proves that all of the statements of Bill Gates about it is true, we already seeing the proofs of bitcoin for Bill Gates statements and i think that it takes real features before people believe in you so you need to be careful in praising something because it might ruin your reputation.