Lottery is provably fair 
Can't find anything regarding fairness of their lottery.
Can't find anything regarding fairness of their lottery. I guess you missed it, check again the lottery page and you'll find the new system of the lottery which is now provably fair.
They are giving just 4% annual interest on your bitcoin deposits and I don't think it is worth if you consider the risk of losing all of your deposits if anything goes wrong with them.
Indeed 4% annual interest is so low, better to invest on gambling sites where you can earn more but of course there is bigger risk as well. Anyway, is there any stats on the investment at freebitcoin like how many people investing and how many btc invested so far?