About this list, this is what I have followed before and I appreciate what OP did for the community as he really made a 1 year experiment on investment.
This also give us a lesson that we should not put all our investment in just one gambling site only.

The list of gambling sites that OP was included in his experiment are.

BetKing - red tagged
MoneyPots (close down already, not sure if the scam accusation against them are true).
Bitvest - active
SafeDice - red tagged
Crypto-Games -active
Satoshi Dice
KingDice
YOLOdice -active.

So based on the list above, some gambling sites went scam, therefore it's necessary to continuously monitor your investment.
It's also possible that we lose investing on sites that would just abruptly gone dark, so at least we won't lose everything as we have diversified our investment.