Intrusive design can be detrimental for several reasons:
1. User Experience: Poor user experience can lead to frustration and annoyance. If your email is difficult to read or navigate, recipients are likely to delete it without engaging. 2. Deliverability: Emails that contain too many images or heavy graphics might be flagged by spam filters, reducing the likelihood that your message will reach the recipient's inbox. 3. Brand Perception: A cluttered and disruptive email design can negatively impact how recipients view your brand, making them less likely to trust or engage with you in the future.