Forcing seed changes without notification is a breach of provably fairness. He could have just had an amazing streak, or hit two 77.77s in a row for the rumored (still no official announcement on that) jackpot, but now pds changed his seeds and in effect his rolls, and possibly made him lose.
I understand that sometimes it's necessary for pd to change seeds in case there was some security issue, and I have no problem with it. But, doing so without a proper explanation is not OK. Tell us why the seeds were changed or anyone claiming that they would have won 200 coins in the next 10 rolls (after verifying his rolls and checking the upcoming rolls) has a valid reason for claiming PD scammed.
I wouldn't go as far as claiming that PD did cheat just yet. I'm sure this was a security related issue. I'd suggest waiting for an explanation from Stunna or some other official body of the site before jumping to conclusions.
Yes and no. Bets aren't related to the previous roll, but they are dependent on the seeds.
Remember that PD uses a nonce based system. So 1 server seed and 1 client seed for millions of bets. You hash 1:serverseed:clientseed and get your first roll, then you hash 2:serverseed:client seed and get your second roll.
So maybe this guy was at roll 100 and that would have been 77.77, and 101 would coincidentally also be 77.77. But PD has now changed the server seed and the nonce resets to 1. So now you're hashing 1:serverseed2:clientseed which will most likely result in a new number. The moment you pick your server seed and client seed, PD knows what each and every roll is going to be until you randomize again, and these rolls can't change (that's what makes them provably fair) unless the seeds are changed. Which happened, without the users consent, which stops making it provably fair.
This means, someone can take their last seeds that was forcibly changed by PD, and generate the numbers he would have gotten if he continued betting with that seed and say: My strategy has been high on reverse martingale for the last 1000 bets. the next 15 bets I should have placed would all have been wins. PD changed my seed so I wouldn't win 20 bitcoin with those bets. And it would be valid (because it is in PDs capabilities to predict this, even if they don't do it) until PD provides us with an acceptable reason for changing the seeds.
Edit: To be clear, I'm not trying to say that pd is scamming or that they cheated. I'm trying to explain why it is important that PD tells us why the seeds were changed. I would advise everyone to wait for an explanation and not jump to conclusions.
Edward explained to me why they forced a seed change, and it is a valid security reason, and will be providing me with proof of it soon. They definitely were not trying to cheat anyone out of a large upcoming win or anything (not that I ever suspected them of doing so). Unfortunately, I cannot share any of the information other than was Stunna has already posted here.
We rotated off access of our prior developer as he has moved on and reset seeds for security reasons. There should have been proper notice of the seed change, I was traveling and just found out about this. My apologies for this inconvenience, I understand a lot of players play small bet long term strategies, this may change the outcome for better or worse but I insist this will not change the odds. This is something we typically do 2-3 times a year (usually when we change hosts) but will give better notice in the future. Again, sorry if this has inconvenienced you. This was unprofessional on our part.
and that win was one crazy roll.Bottom line is they should have informed every user before the forced seed change and i am sure if there is any changes in the future they will inform. 
THIS WAS THE LAST TIME YOU MOTHER FUCKERS. IM GOING BYE BYE PD, TO A SITE THAT RESPECTS ME AS A PLAYER.
