I think this is a neat idea but I wish they would explain this in a simple sentence on their site instead of all the mumbojumbo.
Something like
This is a Donor-Advised Fund that is completely free to participate in. Donor-Advised Funds are the best way to give when you have a major liquidity event because: Reason 1 Reason 2 Reason 3
Join a community of people who want to do the same. This is useful for you because: Reason 1 Reason 2 Reason 3