I've thought about the same thing; transparently, we were trying to get a reliable source of ATIS to inject into our model context and had the same issue with D-ATIS. What airport are you at? Maybe we whip up a little ATIS page as a tool for GA folks.
That would be awesome! My airport is KPDK (sadly it doesn't have a good liveatc stream for its ATIS frequency).
I did collect a bunch of ATIS recordings and hand-transcribed ground-truth data for it a while ago. I can put it up if that might be handy for y'all.
If you're willing, that'd be great. I think our model will do well out of the box, but more data is more better as they say.
I spent a lot of time out at PDK when I worked briefly in aircraft sales. Nice airport!
Let me work on this and come back! I think we can ship you an API for ATIS there...
Existing models I've tried just do a really terrible job at it.