Regarding some of your questions about paying for new programming language and/or its features. I think that idea is not good and if you made this survey just to see is it worth it to publish some language you have written probably using open source tools and not paying anyone anything PLEASE DO NOT, do not make programming languages SaaS, please don't. Give back to community that helped you become developer!
My career is based on the microsoft .net/azure stack, and that's what I am doing for my current client. A lot of it is just crud/batch import stuff for collecting/validating data on various models which includes a lot of business logic built around complex relationships in their data structures.
On the side, I am working on a sports web app with a friend as I find time using the same stack.
Also, lately I have been trying to learn reinforcement learning. What about yourself?
