Stealth is not spam
The original stealth report is about being less obvious than a billboard. The useful version today is the same idea without the junk: partnerships, useful replies, and owned email. Not blasting strangers.
Go where the audience already is
A quiet channel is one your competitors abandoned because it is not fashionable. Niche newsletters, small forums, and customer communities still work if you show up as a person with one link that helps.
Keep the public face small
You can run a simple site and a quiz while most of the work happens in conversations and email. The tactics download is a reminder that noise is optional. Leads are not.
Measure privately
Track replies, booked calls, and quiz completions. If a "stealth" idea cannot be measured, it is a hobby. Use the quiz to pick which quiet path to run for 30 days.