When you decide to use a non-default format you adopt all of the responsibility to make that work: How do I select text from this image to reference it in a discussion? How does my screen reader handle the information? Does this text scale and wrap if I need to zoom due to a visual impairment? Can I use a high readability font with this text? If I color invert my browser how readable is this text?

This whole thread is wildly off topic to the article but I really wish developers would think more thoroughly before rejecting standards and rolling their own.