I always recline as far back as I can. I have no problem if the person in front of me does the same.
I also will rearrange bags in the overhead, (because people have no idea how to pack those things in there). If you want your bag back, you're going to have to take everything out, because it's in there tight.
I've learned that people hate flying and will be miserable anyway. I fly a lot and stopped caring because no matter what, people will complain about it.
I even pop open cans of Pringles in the middle seat.