They are often your real friends, because they are taking the time to communicate something they feel you should fix. And they're telling you. Most tell only their friends and relatives. Watch out for focus groups. Ironically they can really blur the picture.
Extroverts tend to dominate and persuade.
Their points of view get overly represented. Quiet intuitive types who may have the clearer insights are often ignored. Rules are rules. Most rules are established to enhance peoples experience, but on occasion can cause enough frustration to ruin it and reduce the likelihood of return business. Red rules versus Blue rules.