Nope. Fingernails cropped to the quick. Even a hair's breadth of nail annoys me. I play with my fingers and fingertips. Nails are vulnerable to cracking, tearing, splintering, bending and scraping.
Much easier to keep clean if they're too short to allow junk underneath.
The fingertip gives me a wider range of pressure and surface to apply to the string than a nail allows. I can just do a short pluck, or pull a larger part of my fingertip over a string for a different effect. I can pick very lightly and softly with my fingers, or loudly and aggressively.
With my fingertips, I feel the string, feel its surface and its resistance; I can sense if it's rough or smooth, clean or dirty.
If I want the sound of a nail, I can play with a pick. Don't like finger picks that act like artificial nails, either.