Individual opinions are mostly boring, unless it is from an expert.General opinion often is about collective opinions. If many have similar opinion (popular), then that starts mattering.
Collective opinion is often read like polls – very quantitative. Like this nytimes article –
Is Justin Timberlake a Product of Cumulative Advantage?– suggests, others’ opinion guide ones own (popularity).
Reputation ( popularity) is the key that seperates an expert from ‘janatha’ (general public). So if you want to be heard, build a good reputation.