In my case, I used Nikon frequently, especially for professional work. I used it for corporate head shots, events, weddings, and professional sports, and I also used it for wildlife for personal use. But the lack of RAW support with pre-release capture made their action cameras less desirable. The final straw, however, was when I was prepping for a wedding. Their custom settings implementation doesn't meet my needs, and I decided I was not going to keep trying to work around the limitations. That decision led me to dump everything: cameras, lenses, flashes, triggers, remotes, and anything Nikon specific. Three large camera bags full of gear, sold at the local camera store.
I doubt if they will fix the issues I have, so I will at some point look elsewhere.