Your current email is <x id="START_TAG_SPAN" ctype="x-span" equiv-text="<span class="email">"/><x id="INTERPOLATION" equiv-text="{{ user.email }}"/><x id="CLOSE_TAG_SPAN" ctype="x-span" equiv-text="</span>"/>. It is never shown to the public.
the sharing system used for this video implies that some technical information about your system (such as a public IP address) can be sent to other peers.