I understood that Moonstone have to accept only BTC not to harm their profitability. But Here're several thoughts.
1. The main target of Moonstone is BTSers. In recent bear market, their portfolio consists of mainly BTS, not BTC.
2. It is very hard to appeal the advantage of Moonstone to outside of community.
3. BTS whales do not want to move the market downwards. That is, they are hesitate to convert their lots of BTS into BTC, for the fundraising.
4. So many are waiting for BTS price increase. But I'm not sure this happens in a month. This results in one of two scenario: 1) People suddenly sell BTS to donate Moonstone, and price will drop enormously, 2) Moonstone fails to achieve the goal.
If Moonstone accept BTS, I believe many big BTS owners will put out their cold wallet money and donate for Moonstone. The success of Moonstone will spur price increase and Moonstone may have better profitability.