I think the Russians that would want to backdoor stuff would just use a name like John.

Manhole covers are also a common exercise for engineering students. Like designing one that can hold x amount of weight with a specific set of limitations and/or requirements.

Maybe you need 2FA on your GitHub account before you can do that. GitHub has made it a requirement for almost all the “dev” stuff.

Fossify is great. I replaced some stupid anti-privacy GApps with them.

Emails are personal data and are not allowed to be shown without specifically opting in for it. In Europe at least. Same for IP. This is also why when you “Recover Password” it will say something like “if this email address is found we’ll send you a mail”. So nobody can just check if an email exists on the service.