The main idea is to attract dice players who will get +30% boost of their diceback/rakeback. If they are high wagering players, their benefits could be huge.
Rates are at this levels as this is what we could afford at the moment without put users in delusion.
How huge could be the benefits for high wagering players? Do you think high wagering players have the time to make 10 cents posts?
So let me calculate the "huge benefits" for high wagering players1) Duckdice example:
100 BTC wagered with 1% house edge = 1 BTC loss - 15% DiceBack =
0,85 BTC loss
2) Diceback signature campaign:
100 BTC wagered with 1% house edge = 1 BTC loss - 20% DiceBack(30% boost) =
0,80 BTC loss
-> If someone wager 100 BTC, he will safe $50 in rake, but at the same time has to make 10 cents posts instead of 70 cents posts
3) Safedice biggest benefit for high wagering players:
100 BTC wagered with 0,5% house edge = only
0,5 BTC loss
opposed to your 1) 0,85 BTC or 2) 0,8 BTC loss (not to mention the hassle and time to spend for your signature campaign)