No, you do not have to take ownership of your shares. You may choose to donate your shares back to the community to help incentivize more members to share their data.
If you do not take ownership of your shares, you will not be able to receive dividends for those shares. You may also choose to donate the dividends from your shares to a charity of your choice, but you will need to take ownership of your shares to do so. As we near our first dividend disbursement date, LunaDNA will provide a simple process to donate your dividends to a charitable organizations of your choice.