Stanistani, you’re absolutely right that email can be a huge security risk and many enterprise subscribers have their inboxes locked down. Email security should definitely be a focus for every email provider.
But to clarify, this article is largely geared towards marketing to consumers via email. While considered spam by many, it’s an absurdly valuable marketing channel that is preferred over other channels by most consumers. It’s a channel that drives huge business for some of the biggest companies in the world.
The techniques and tools described above give email marketers, designers, and developers the ability to set their email programs apart, in order to provide a more interesting, valuable experience to their subscribers. The techniques might not be for every sender, but I see more and more email marketers using them to great effect.