XDF looks cool! Some of the design choices look pretty inefficient and arbitrary for a data format though, have you thought about rebranding it as a markup lang

XDF looks cool! Some of the design choices look pretty inefficient and arbitrary for a data format though, have you thought about rebranding it as a markup language? =] /s The point being, I think the author is arguing you should use the right tool for the job, and XML not being designed for arbitrary data structures makes it not the right tool. Just recently people have shown you can build a raytracing engine in SQL, but if someome was arguing we shall call it SQLCycles and ship it in Blender, I'd definitely have a few objections!