Temporary accounts will receive notifications, but they don't have access to adjust preferences.
Temp accounts should keep the default notification preference (to keep it simple and because then we aren't adding as much to the user_properties table bloat)
However, Temporary accounts won't have access to the newcomer homepage and suggested edits, so we don't want them to receive Growth notifications.
Given an account is a Temporary account,
Then it shouldn't receive Growth notifications