The article emphasizes the effectiveness of plain text emails over visually polished ones. By adopting a more personal and human approach in emails, engagement rates can increase significantly. Plain text emails are seen as minimal, focused, and easier for recipients to read and engage with. The benefits of plain text emails include higher deliverability rates, increased likelihood of reader engagement, and quicker experimentation with different email content. The article provides tips on transitioning to plain text emails and highlights situations where plain text emails work best, such as feature announcements, product updates, and asking for feedback.