A lot of times what people want from a DSL is really just something that doesn't have to compile and/or something to run in a VM. Sometimes people just want a t

A lot of times what people want from a DSL is really just something that doesn't have to compile and/or something to run in a VM. Sometimes people just want a text format for data that could be done with json. Making a new language throws away everything and starts over including debugging, tools, syntax checking, auto completion, documentation etc. It is take way too lightly and just becomes a hassle. You can see this in multiple GUI libraries, where getting the parameters to set up a GUI is really not difficult and is just data through function calls, but it gets made into a separate XML like DSL markup language with it's own quirks and opacity, and that XML is for most people being given using a big string from within the language that they're using. This stuff persists because it sounds easier on paper and it just creates more problems in practice but it takes experience to realize all the you're losing. That's where designers need to be experienced and do what works instead of what will suck in people that don't know any better.