8 Loss streak on 50/50 proves nothing.
Nothing
Please have some more concrete proof of...well...any wrong doing...if you're going to make these kinds of accusations.
And don't get me wrong, I've sometmes questioned why the seeding is so random on PD when the solution is fairly easy, but your picture does nothing to say they are rigged.
I've seen 20 loss in a row on Just-Coin and you'd be stupid to say they are rigged.
You're gambling. You will lose.
People say, "The House Always Wins" for a reason.
Re-read my first post where I do say that the server seed can be pre-generated in such a way that it allows selective hashes.