It's a curse of writing to an unknown audience for me. I have no problem with blogging but stepping back to write a good draft for that 'first time reader' is just is extra effort. I write constantly for myself to myself and I just don't see value spending that extra time to provide context. I also have the advantage of writing to myself and being able to grep for anything I am looking for or better structure the file layout in a way that is more meaningful for me. A blog doesn't really improve upon this amazingly