You can be a target from criminals and you don't know that you can be physically attack and force you to cough off your bitcoin address and the private keys. So for me, it's better to keep a low profile specially if you become a self made millionaire through bitcoin, just saying.
I don't know his true story though and I never heard of this "Lucky Bitcoiner".
But it's really good to know that they are being successful and we all know that thay're not the only who's experiencing it-- "it" meaning them being successful in their Bitcoin investment. I even know close friends who are receiving their "rewards" from investing bitcoin and buy something they need or want.