There has been a lot of updates to the site, I don't know how much it has followed the roadmap or not, they haven't told us anything for over 2 years.
So, I'm sure there is stuff they could use to defend themselves there.
But, this post from Boxxob, who was a representative of Bitdice at the time is illimiunating
https://bitcointalk.org/index.php?topic=5224823.msg53853076#msg53853076I'll copy and paste the relevant bit for ease
The token price is down, sure but it's a dividend token which means the investors are still entitled to part of future profits which are estimated to get better after the new website is ready and marketing kicks off.
Where are the dividends?
Where are the reports?
Where's the P+L?
We've had nothing from Bitdice for over 2 years! (Please see their Medium, which is where they publish their official reports to ICO investors)
I think my accusation of them being a scam is with reasonable foundation.
I'm open to hearing from them and any refutations.