What are merits of spoofing for hackers to fabricate a sender name though they can just let it blank?

Question

What are merits of spoofing for hackers to fabricate a sender name though they can just let it blank?

Answer 1

than they can create any thing they want to

Answer 2

they do it to look like a legit sender. used for phishing scams. I got several email that looked like my bank and one from my credit card company. look for misspelling and watch where  the links want to send you before answering these.

Answer 3

sounds like aliens have something to do with this, wrap your computer in tinfoil and you'll be good to go.