It is not nice that multiplier has been decreased for me as player but I think adaseb is right. I like this game because on the one hand I can choose which number I want to play and on the second hand I can verify the bet is fair without checking complex algorithms. I don't like to play standard dice games because most of them just have like bet high or low crap.
One advantage with new rules is that you can also send small bets without losing a lot for transaction processing.
That's very rich of you to pay an extra 4% per bet (and probably more, because tx fees and some sites have a lower edge) just because you want easy verification. If you bet very few, it's not that hard to read up on the algorithm (it's not that complex), and verify the bets yourself. Have you read up on how the hash of bitcoin blocks are generated, and verified that it is random? Also, it's worth noting that some dice sites go as low as 0.5% for a house edge, which is a lot better than 5%. There are other provably fair games with a low house edge, that aren't dice, and there are different twists on dice (like choosing the winning range).
I think it would be way better if Chain-Bet went offchain (or offered that as an option), and let you bet on block hashes for specific blocks. I'd probably play if they did that, if the multiplier was raised.
I can tell you from experience, I have thrown away thousands of dollar in sites like SatoshiBones. I play now like one month here at chain-bet and won about 1.2 btc here. All losings are already calculated into that amount. So at the moment the edge is on my side

. The only thing is, you need to choose your number wise ;-) If you change your decision to often you gonna lose.
What I am saying is, if you know a game where you can choose the exact numbers by your self and not bet like at SatoshiBones or high low stuff.. then tell me. I like the concept of this game very much.. and if you go to a casino to play roulette the house edge is also about 6.25%.