I never look at my own karma either but then I'm also not actively trying to increase it. But reddit users do tell us themselves that they post things specific

I never look at my own karma either but then I'm also not actively trying to increase it. But reddit users do tell us themselves that they post things specifically for the karma. They also do things like post screenshots of threads instead of the threads themselves to get the karma from those posts. There is a whole host of behaviors on reddit around acquiring user karma. For individual post karma, I'm the same as you.