This reference below, for example, is theymos's warning about 999dice in 2015 -- that seed issue is no longer an issue.
I second this one.
Then please go and play on 999dice with your money.
For me, if a site is scam, it'll be always a scam site. No matter how old the accusation/incident.
They might have some past issues but its been resolved and we cant completely conclude
that they do have still the same behavior as before
Show me the proof if all of 999dice issues have been resolved, will you?