Instagram pods are private groups of 10–15 creators that coordinate likes and comments on each other's posts in order to artificially boost Instagram engagement and gain more followers. Because these interactions are coordinated rather than organic, they are not considered genuine audience interest, and there is no guarantee that any sale could result from them.
Comments to giveaways and contests, as well as spammy comments, are also considered non-authentic.
When the percentage of suspicious comments is too high, it is a sign of low Comments Authenticity. A low percentage of suspicious comments raises the Comments Authenticity level.