According to a Stanford University study:
73% of consumers judge the credibility of a company in less than 3 seconds on social networks.
Criterion #1?
The number of subscribers.
"A profile with more than 5,000 followers is perceived as 3x more credible than a profile with 200 subscribers, even if the content is identical."
- Dr. Robert Cialdini,
Psychologist and author of “Influence and Manipulation”