Maybe I'm seeing a different picture but I don't see "Please don't stomp. Here's some candy." I see an obnoxious picture and a note that says "Here's some candy, don't be mad". This would not entice me to be more quiet at all... unless I knew for a fact a mentally handicapped person or child was responsible.
If you want something, the best way to get it is to simply ask. Drawing obnoxious pictures - most upstairs neighbors are not in fact "stomping" they are simply walking and sound is carrying - is not an effective form of communication as far as I'm concerned. I also object to people telling me how to feel ("don't be mad") - make your request if you want, but don't tell me how to feel or think.
I agree its not "passive aggressive" though, its straight up "aggressive aggressive" - it accuses the upstairs folks of essentially jumping.