Any software developer can easily use any number of available cores for a proportional speed-up of compiling projects.
Nevertheless, Threadrippers are not really useful for software development, because using two computers with 7950X and 64 GB memory each as compilation servers would provide a much higher speed than one computer with a Threadripper 7960X and 128 GB memory, which would cost about the same.
Threadrippers are not useful for who wants many cores, because the 7950X cores are much cheaper, they are useful for those who want a large amount of memory in a single box or a large amount of PCI lanes (e.g. for multiple GPUs) in a single box.
Nevertheless, Threadrippers are not really useful for software development, because using two computers with 7950X and 64 GB memory each as compilation servers would provide a much higher speed than one computer with a Threadripper 7960X and 128 GB memory, which would cost about the same.
Threadrippers are not useful for who wants many cores, because the 7950X cores are much cheaper, they are useful for those who want a large amount of memory in a single box or a large amount of PCI lanes (e.g. for multiple GPUs) in a single box.