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.
This will delete all your data, including channels, videos, comments and you won't be able to create another user on this instance with "<x id="PH" equiv-text="this.user.username"/>" username.