Now is an advertisement different from a comment from a regular consumer
The advertisement is likely one sided
The advertisement may have been posted by the
seller.
It isn't any different
The advertisement is made by an influencer who
gets paid

The advertisement is likely one sided.

Explanation:

Marketing can be defined as the process of developing promotional techniques and sales strategies by a firm, so as to enhance the availability of goods and services to meet the needs of the end users or consumers through advertising and market research.

Marketing comprises of all the activities such as, identifying, anticipating set of medium and processes for creating, promoting, delivering, and exchanging goods and services that has value for customers. It basically, involves understanding customer needs, building and maintaining healthy relationships with them in order to scale up your business.

Advertisement refers to the promotional multimedia messages designed and developed to make the products or services of a company known to its customers and potential customers. It is generally considered to be one-sided because it focuses on painting a brand as the best and devoid of any negative issue.

On the other hand, a comment from a regular customer is fairly balanced as it is based on his or her experience with the product, whether good or bad.

Hence, an advertisement is different from a comment from a regular consumer because an advertisement is likely to be one sided.