I find Tailwind really good for prototyping designs and iterating quickly, and as the design becomes more crystallised then I moved to semantic css and start to clean up the complexity. Once I've figure out that patterns and components required...
In fact, if there's enough interest, I'd probably build it too...
Possible on a later bigger update (if necessary), a complete app would be rebuild. But here is the same problem: why should you do it, if your project works?
I personally had not seen such an update in early stage of a startup. Did somebody have insights or examples?
Tailwind is somewhat like lisp in the aspect that people usually don't get what all the hoopla is about. All they see is parenthesis and want a "lisp" without the parenthesis once they figure out polish notation