If I wanted to be a scam writer, I would:
1. Start a strong social media presence with fake pictures connected to an official looking website ;
2. Make false claims about the number of successful clients I have had;
3. Post testimonials from these clients with a fictitious but working email address to reach teach "satisfied client" by. Then ask my friends to respond to the emails on my behalf;
4. Make sure I get as much personal data from the client as I can for potential sale to the highest bidder. In case the client decides not to complete the transaction and demands a refund for his partial or full payment.
Not that I would do any of these things. I was just thinking the list needs to be updated with more up to date information about how a scam writer might function these days. Data privacy and fake credentials are too easy to create and manipulate these days. Students, be warned.