Currently, submitgit doesn't seem to be promoting it's privacy policy to it's users, well. It requests access to use user's email address to send email addresses using Amazon SES but doesn't specify anything about how it would be used; which is a red alarm to the privacy conscious users.
Further, submitgit could possibly face an increase in usage as a result of it being referenced in the CONTRIBUTING.md file of git/git.
So, it's better if the privacy policy was promoted to users to ensure being in the safe side.