Mark Lundeberg has en epic Bitcoin Cash CV (Schnoor, CashFusion etc.). Now he has launched a Flipstarter to keep improving privacy/CashFusion etc. for BCH:
There is a limitation in the smart contract of Flipstarter. Jonathan Silverblood who did the first versions of FS explained that it is a limitation in how UTXOS work.
I guess you can directly donate to Mark (`bitcoincash:qqy9myvyt7qffgye5a2mn2vn8ry95qm6asy40ptgx2`), but it won't be included in the Flipstarter campaign.