I've become obsessive about the sharpness I get. I think you could say I've always been amazed and desired sharp edges. I've also felt good about being able to sharpen a knife. I thought I was obsessive back then. I also thought I was getting my knives very sharp. And I was getting them sharp based on a non-knife person's expectation. Then I got more active in the knife hobby. All I wanted was a knife that would stay sharp longer. After getting over the shock of knife prices I bought some. Then I found out my old dirty stones wouldn't sharpen the harder steels. So after getting over the shock of sharpening stone prices (
) I started buying stones, systems, strops, etc. As I was buying, selling, using tools trying to establish a set I was happy with I learned a lot about edges and how to get them. As dbcad said, I've learned tons from people on this forum. After putting all that together along with a lot of practice my edges got sharper and sharper. Also trying differen't angles on a given steel and/or for specific use in addition to just being sharp.
Now I am not happy with the knife in my pocket unless it is as sharp as I can get it. No more using my knife untill it was dull and almost useless. I will often just hit the edge of my EDC knives after carrying them with a Spyderco UF stone. Two - three passes will return the edge sharpness. When people consider my knife very, very sharp and I want to apologize because it isn't cutting good enough I think I have become obsessive.
I have learned there is much more to this sharpening game than just sharpness. You have edge angle, edge smoothness (or coarseness), bevel finish, multiple bevels, etc. Even though I am not an expert I can put an edge on a knife that is more appropriate for the intended use of the knife. This is very satisfying. But when someone changes an edge back bevel from 13° per side to 12° that is considered obsessive because they know it won't improve the performance enough to matter. Of course I would never do anything like that (
) but some people would.