1. Why is the WOF spin provably fair? If I play Multiply BTC: Before the roll happen, I can see the hash of the next server seed, so it cant be changed secretly. I can also see my own client seed and can change it manually before the roll. I understand the meaning of provably fair at this game. But at the WOF spin, I cant change the client seed before the spin. It also seems that the spin happen shortly after solving the captcha. If I leave the WOF site without pressing the spin button, the WOF spin is nonetheless recorded in the history with a time stamp some seconds ago. (See roll history in Multiply BTC) ->You should give me a chance to see the server seed hash before the spin happen and let me change my client seed manually.

2. The last months I lost track of the website, I didnt read the promotion emails or in this thread. Did you change the payout interval of the WoF spin? A year ago I calculated the probabilities myself: Link
But now, the new payout probabilities are: Link
Especially: The ~5000 Satoshis price probability dropped from 1.327% to 0.1%. (I know: Nowadays you get less than 5k, depending on the BTC-$ ratio)

3. There is no problem to use this website as a cheap BTC mixer? If I buy BTC with Euros, I have to reveal my real data. I deposit some of the BTC on this website and retrieve another BTC amount some month later back. It should be very hard for a foreign person to make a connection between both transactions. Right? (I mean little amounts like ~100 Eur.)