New Mail Technique - How to monetize ?

I have been in and out of this business for many years, but mostly out of it for past 5 years or so.

I recently came across a technique to almost guarantee any mail that inboxed would be opened.

I don't know what current rates are, but it used to be only 2/3% of inboxed mail was ever opened, so to get 95% opened is a major gamechanger.

The question I have is how to use the knowledge.

I don't really want to go back to bulletproof sites and unless things have changed I can't imagine CPA accounts would last very long.

Any suggestions ?

What is the technique? Are you using clickbaiting titles?

Share your technique perhaps to help other out while learning new stuff yourself.

Nothing so complicated - I just "treat" the subject line to make it so compelling 95% are SO curious they open the mail

You threaten them huh? May I ask how many sales conversions have you actually gotten with this "technique"?

None. As I posted I am looking for ideas how to monetize.
The problem for sellers, once it inboxes, is to get mail opened.
If it is ignored it hardly matters if the offer is good or bad.
This technique gets it open without creating a bad feeling so I believe conversion should be good if the offer is appealing.