Personally,if a game i dont care much about, start going down the hill, i just leave it. plain and simple.but if its a game i care about and love, i voice my opinion and fight to make it better for myself and others.
Right now if you look at the complaints carefully, you notice that a lot of them have similarities about certain issues in Meta, and how game is being pushed toward the same method and repeatitive experiences, its like the diversity is leaving the game and encounters are becoming more about pre determined scenarios based on certain factors,that can be changed. its obvious lots of people who complain about the game love it and just want to have more fun with it. so i dont see it as negativity.
just sharing my thoughts , hope it helps :)