No, adding your own results to mtDNA Community does not include submitting them to NCBI Genbank.
Privacy Alert: By uploading mtDNA full sequence results to mtDNA Community, you are making them public. Though you can change your privacy settings on the mtDNA Community site, your information may be copied to third party sites which mtDNA Community cannot control.
Contact: The mtDNA Community website is independently run under its own guidelines. Please use the info@mtDNACommuity.org e-mail address to contact them.
Disclaimer: Further more, in no event shall the staff and/or consultants of Family Tree DNA or Gene by Gene, Ltd., be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether or not in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of your results on the mtDNA Community website. You decision to disclose your personal genomic information and all consequences of it are strictly yours.