Operator-written breakdowns of how the engine actually works — and what 25+ active B2B newsletters tell us about open rates, churn, activation conversion, and the math of compounding. Published when the data justifies it, not on a schedule.
[Placeholder summary] Full dataset from Optin's active client roster: median open rate by audience size, churn by deliverability cohort, growth velocity by ICP density. The numbers most B2B founders are guessing at.
[Placeholder summary] The structural reason most B2B newsletters cap at 20–50K subscribers — and how Selective Distribution breaks through it by widening the source pool without diluting ICP fit.
[Placeholder summary] Full mechanic of how Selective Distribution acquires verified ICP subscribers on pre-warmed infrastructure — domain pool architecture, engagement filter, ESP migration, milestone delivery.
[Placeholder summary] The three-email sequence that turns engaged readers into BANT-qualified meetings — and the compliance discipline that keeps the underlying audience compounding instead of degrading.
[Placeholder summary] The five attribution rules that resolve every performance-pricing dispute we've seen — and why they're written into every Audience-to-Pipeline contract before the work starts.
[Placeholder summary] The ACV floor where the pipeline math starts to clear — and the cohort where it doesn't, no matter how good the targeting is. Honest notes from saying no to clients we liked.
04 · Get the work
These reports come from doing the work, not the other way around. For an Audience-to-Pipeline conversation, or for Cold-to-Optin standalone — email directly.