I had a stuck pixel appear on my 193p once. I was horrified. I immediately took a micro fiber cloth and rubbed it. Luckily it went away moments later. On an NEC 20gmwx2 that I owned, it had one stuck pixel to start with and then about 1000 or more appeared later that day. On a dell 2405fpw that I also owned for a few days, it started with 4 stuck pixels, went down to 2, and then back to 4. Other than those events I have never seen any other pixels appear or die.
I had 4 on my L90D+. They were clumped together. Two stuck red ones near the bottom and two stuck green ones on the right. I managed to massage the two green ones away but the two red ones are still there. God damn, I hate those red ones.