It's truely a race to the bottom. Cold email response rates are already ~1% industry average. Every outbound tool is adding the AI customization, and there is a slew of 'AI sales rep' companies promising more and more personalized spam.

There will likely be rewards at first. An uptick in response rates as most of the market won't recognize emails are AI generated. But because it's trivial to send AI personalized emails at massive scale, your email inbox will become entirely useless.