Havent read through the thread, but i see op has a negative trust. Is this site legit, im a sucker from plinko:p
dice.ninja has been offline for ages. It was a straight-up scam, apparently. The site suddenly shut down one day and the site's owner ran off with the funds. They were quite popular because dooglus (who owns Just-Dice) recommended them after gambling restrictions in Canada forced him to stop accepting BTC and temporarily disable his site (it's currently back up and running but it now uses an altcoin called CLAMs). Before dice.ninja, dooglus recommended another dice site called Dicebitco.in which also closed down in similar shady circumstances. I lost a small amount of BTC from that one:
Dice.ninja was a dice betting site that was popular in the second half of 2014. It offered provably fair games, Bitcoin and Litecoin support, the ability to invest in the site's bankroll, and a 1% house edge. On October 10, 2014, Dice.ninja and two other associated websites (JPCDice.com and DarkDice.net) went abruptly offline while their Twitter pages and email accounts were shut down. Analysis of the blockchain revealed that ~2,000 BTC of users' funds were taken out of the cold wallet and sent through a mixing service while the site owner(s) disappeared.
Link:
http://www.wikiscams.org/index.php?title=Dice.ninja