It's one of those things that makes me feel broken. I'll waste most of a day doing something that, in retrospect, was not worth the time I spent on it. It wasn't interesting or constructive in any way. I didn't really get any lasting satisfaction from it. It had no more benefit than me stating at the wall for a few hours.
And all the while, there are real tasks to do. Things I either need to do, or want to do. Why not at least do the tasks I want to do? Why do something I know is so pointless?