Don't put 100 people in a room. Put 4 or 5 in a room max.
You need a feedback loop to sanity check features some how, but you also need vision and the courage to release stuff that not everybody wants. Every good product I've worked on has had team members who thought the newest features were stupid. Too bad, you aren't the target audience, get over it.
Accept that you'll be releasing features that are either wildly liked or hated. You are going to be hitting both ends of the bell curve more often this way, embrace and accept it.