Do check on my above post regarding their statement on this investment-trust issue. What I can say is that trust needs some time, by now Dadice has paid alot for the sig campaign advertisement along with the social media advertisement and also some bounty for the roll event.
This is sure an indication that they are here to stay , do some business and aim for the top dice sites, but still, do use some extra precautions because any sites can go MIA in a night

I agree to an extent regarding their own time investment and various social campaigns it is an indicator that they do want users and are here for the long term.
However, to play the devil's advocate, it's also exactly the thing you'd do if you wanted to build up both investors and users so you could scam the most BTC possible. Not saying that's what's going to happen - but I would take that observation with a grain of salt.
Hi,
I don't think the latter part makes sense. AFAIK, they are here to stay and is aspriring to be the number 1 dice site soon. And they are working hard on it.
If you haven't noticed, they are building on their features and their devs are actively working on the site and come up with new ideas, features etc. They wouldn't do it, unless they are genuinely interested in becoming the best Bitcoin Dice site around.

Cheers

ndnhc