Sure, but it rather pokes a hole in the concept of general computing, does it not?
I don't see how. I pretty much think anyone should do whatever they want with their computers. Windows is acceptable for some, and not for others. I can't see the point of getting mad about what software other people are running.
I have never used WSL, but if I ever do, it definitely won't be for gaming.
Somehow I just don't see the same demand for people on macs/linux and WINE. It seems like a niche interest to actively want to combine the two worlds and I am VERY interested if any significant number of people use this who are not driven by gaming needs.