Does kraken accept payments from FreeBitcoin? Maybe I will also start to cash something out.
I looked it up in Kraken's terms and conditions and it doesn't mention that deposits from gambling sites are prohibited.
However, you have to be careful and to be more certain, it is better to ask their support agent directly, my suggestion is to withdraw to your personal wallet.
You're right that it's better to clarify this with support. At least to avoid an unpleasant situation if it turns out that Kraken exchange interprets any activity on Freebitcoin as illegal. Although I honestly don't remember anyone having any problems with centralized exchanges due to withdrawals from Freebitcoin.