<b>Curiosity-gap subject lines age in reverse</b>

<b>Curiosity-gap subject lines age in reverse</b>

Popular advice: "Quick question" gets opens, so use it.

Myth. It did get opens — in 2017. Every cold sender copied it, so inboxes learned the pattern, and now "Quick question" is a near-certain pitch flag. The trick that worked is the exact reason it stopped working.

It's not that vague subject lines fail — it's that <i>famous</i> ones do. The open rate of any clever line decays the moment it scales. Boring and specific ("re: your Q3 affiliate caps") outlives clever and copied.