There probably is a thread, but why not discuss again? I'm in the midst of severe OMY right now. Sounds like you cover a few of the definitions.
Literally: one more year means that for some people. Maybe me. I'm 54, and at 55 if I stay with Megacorp, I could access my 401k at 55. A slight benefit, but really not that important. For many people, that OMY is crucial to a pension or health benefit. Not me. Sounds like it for you.
Figuratively positive: this usually means "I love my job, and I'm F.I., but I want to work one more year to accomplish 'x'" There was a thread here called
OMY with meaning which discusses the possibility of using that extra money to change the world.
Figuratively negative: going through the motions. I don't know why I'm doing this. "People say" I should keep working, so I do. I don't know how I'll tell my friends I'm retired, they'll think I'm crazy. Etc. There are A LOT of stories here like this. This kind of thinking is very common. People have worked for 30+ years and know nothing different. They just keep doing it. They literally OMY until they DIE. No joke.
Figuratively anxious: a lot of us fall in this category. It comes down to "what if". We OMY to "get more cushion just in case." In case of what? Black swan? Health issue? You just don't know? I'm in this category. I come here to ER.org every now and then to get a kick in the butt. It is very easy to keep "cushioning yourself to death."
In my case, I think I got out of worrying about the cushion. My OMY is more to do with DW and her work schedule. She is in literal OMY, and will retire next year on the exact date she is eligible for very generous benefits. Not me. Instead, I'm exploring a job change to do something different. Almost like the "OMY with meaning" thread, but the meaning would be primarily for me and my brain. I may not get this little dream job where I could change my world. If I don't, I'll keep posting on
Class of 2018 and ask for a kick in the butt.