> What would be the purpose of such a simpler vector format?
To allow simpler implementation for both consumer and creator software. To achieve better performance (lower size, faster parsing and drawing).
> The only use case I can think of is for standalone vector graphics images, but PDF or SVG is often good enough for that.
SVG has some problems as a graphics format, which are highlighted in this thread. I'm not sure about PDF, I never saw it used as a vector image format, so can't judge much about it.
To allow simpler implementation for both consumer and creator software. To achieve better performance (lower size, faster parsing and drawing).
> The only use case I can think of is for standalone vector graphics images, but PDF or SVG is often good enough for that.
SVG has some problems as a graphics format, which are highlighted in this thread. I'm not sure about PDF, I never saw it used as a vector image format, so can't judge much about it.