What do you mean by free winnings?
Just now I claimed free coins and purchased lotteries without any issue. For quite some time I didn't claim my free coins but after reading your above post claimed and purchased lottery tickets.
I'm guessing your account roll history includes something other than just free-rolls and buying lottery tickets with every Satoshi.
I don't know what your guessing. But my account is very old and honestly I never deposit a single Santoshi into my account until now. But many times withdrawn my referral earning to my personal wallet on a weekly basis long back. Now for more than a year most of my referrals are inactive and no earnings from referrals.
But every week I used claim few times free coins and buy lottery tickets but last couple of months not so active on this site. Today only I claimed and bought free tickets with free money.