Red flags here..
Does charity really need to have blockchain tech?
I fully support charity but it is sad to see that only 10% will be donated. Why don't the devs just ask for donations and donate it to orphans?? Because this is a money making scheme for the dev and he is using "charity" as a front. So unethical.
You are totally right that the 10% going to a wallet is a concern and everyone should be aware that at any point the dev could run off with the funds. However so far the dev hasn't given us any reason to believe this will be the case and hopefully sometime in the future the plans for setting up a formal auditable charity will be hammered out. Beyond that everyone should expect the 10% to be sold on a regular and ongoing basis to fund that charity.