throwa18991900

For my domains personally the static math functions are still clunky to me in C#, and the forced compiler time inlining can really help some algorithms with massive perf gains (experienced firsthand) especially with some of the newer .NET features (e.g. ref's). IMO to me the nicest thing is the terse syntax, and that I need less IDE as a result. There just seems to be less refactoring tools required to get started and onboard people.

I think the abandonware thing is expected. But I think this is the cost of a language that is a child's to a main ecosystem and doesn't just apply to F#. Unless its specific to FP/the F# domain it will be written in C# or whatever the common language is for that platform. Ironically the language with the least features is the one to write in (LCD) so it targets the most people. Why would I just target one language on the platform when I can target all languages? Especially if I'm paying a team to write the library. Most bang for buck so to speak.

Hence most things in these side languages are either wrappers to make them more idiomatic and/or pattern libraries that are specific to the extra value add the language has and usually don't need to change much once implemented. I think that's fine and pragmatic, why reinvent something that works?

I've seen the opposite, and have seen some pretty big fast large professional systems being built in it. Admittedly most of them are closed source, and the community contribution allowed to be made is small. Most of the developers using it normally just market themselves as C# developers when they change job because of some of the above opinions they see online. Have seen speed comparisons compared to other similar tiered languages internally where F# shines with less code as well particuarly around math (C# is just starting to catch up here). Even seen dynamic problems solved in it to your point in a professional setting to speed up very often run calculations to a large customer base.

However technical capability and efficiency of the tool isn't the only concern picking up the comments in this thread so far. The herd effect sadly can make people nervous creating a barrier for people to try it especially if career is in it. What other people think of it, and their preconceived notion can matter.