It's obvious he was banned for the email submits. Sure, you can submit them and Facebook strangely approves them easily. They sometimes blindly approve things that are against their guidelines, only to look at them closer later and disapprove them.
Email submits are against their guidelines. Section 2.f states:
This is also why you cannot build opt-in lists on Facebook, no matter how clean and innocent you make them.
it was more of the dating ads that got me killed. apparently they found it abusive.