I stopped running growth campaigns and just wrote a script. Retention went up 34%.
The hot take nobody in the growth community wants to hear, campaigns are a band-aid for products that don't have working feedback loops. Marketers obsess over acquisition because it's visible. Developers can fix the actual drain.
One weekend project. Automated the onboarding trigger that fired too late, moved it to the moment users hit their first aha instead of 3 days after when they'd already left. No A/B test. No campaign brief. Just a conditional and a cron job.
34% retention lift. The growth team took credit in the all-hands. I didn't care. The number moved.
Code-first growth, just debugging your funnel the same way you debug everything else.