Mana,
I applaud your desire to be active and express your views about the organisation, but I personally think this idea will not work. If you put a negative comment for a JW app, all JWs will see it and say "ahh that's just an apostate, we are warned they're bitter".
Our aim should be to help JWs wake up from their indoctrination don't you think?
You may very well be irritated by the comments, but these are fully indoctrinated JWs, I was once like them, but now I am awake. I am awake thanks to activists that did it the right way.
Kate xx