I have used XML a fair amount in past years, but now avoid it. There is a subset of XML that a decent language for some use cases. In particular it is good for

I have used XML a fair amount in past years, but now avoid it. There is a subset of XML that a decent language for some use cases. In particular it is good for documents whete you want a _markup_ language. But I've seen it used for a lot of things where it wasn't a great fit. And xml has too many features, which leads to implementations that are inconsistent with each, often slow, and have security problems such as xxe. I wish that there was a standardized simplified xml format, that would avoid many of xmls problems and meet the needs of 90% of applications where xml is a good fit.