You have absolutely no idea what bitcoin or a currency is and you have no economic knowledge

Yeah, I'm only a licensed investment advisor several years running.. .

Bitcoin is a commodity - not a currency.
You go ahead and throw your money away... you'll get 4% interest a day, but you'll never see that money.
My point was you jumped to conclusion saying I have no idea how money work. I am not advising to invest in freebitco but knowing what you can do with your bitcoins is of interest for me. Obviously there is a third party risk if you deposit your bitcoins on any website, especially if it's not incorporated in a country with higher accountability.
BTW, Freebitco pays daily a 4.08% of annual interest rate, not 4.08% per day. What do you do with your bitcoins ?