I would consider email address "identifying information". I think if you're hesitant about signing up for a service because you're worried they might be the typ

I would consider email address "identifying information". I think if you're hesitant about signing up for a service because you're worried they might be the type of company that will waste your time (making you sign up before convincing you they offer something valuable), then you probably aren't in a place where you want to put the decision in their hands of whether or not to spam you incessantly until you unsubscribe.