An email comes from you mom, your sister, your BFF. Does it matter what the subject line says?
No, you open it right up.
Any one of those organizations could send out message without a subject line and I can still guarantee they’d be read.
Makes me wonder if the customers requiring persuasion only by an arduously-crafted subject line are worth the trouble. They obviously don’t trust the sender – and a single email isn’t going to change that. An overall improved customer experience (including ignoring them) might start that process.
In addition – how many of the subject lines in your inbox right now are meaningful and accurately reflect the message body?
I checked Gmail, Yahoo Mail, Mail.app, and it’s not obvious how to remove the Subject column in any of them. Best I could do was in Mail.app – move the Subject column to far right and then expand the width of the other columns to push it out of sight. We’ll try this for a week and see how it feels.