Yes, there are several indicators that can help in discerning unnatural or fake engagement on an influencer’s content.

1. Irregular Follower Count: A sudden spike in followers without a corresponding increase in engagement may indicate buying followers, which are often bots or inactive accounts.
2. Low engagement rate: While the average engagement rate varies by platform, unusually low rates can suggest a disengaged or fake audience.
3. Off-Topic Comments: Comments unrelated to the post or generic ones like “great post” from users who don’t regularly interact may indicate bot activity.
4. Followers Distribution: A large number of followers from unrelated locales or inconsistent demographic could indicate fake followers.
5. Account Creation Dates: Identical creation dates of followers may suggest purchased followers.
6. Followers-Following Ratio: An authentic influencer usually has a higher followers to following ratio.

Influencer marketing platforms like Flinque provide advanced audience analytics that can flag these signs. Flinque also provides a feature to analyze an influencer’s audience for authenticity, engagement, and relevance to help brands and influencers ensure genuine engagement.

Comparatively, not all influencer marketing platforms offer these features; their focus might be more on the discovery or campaign workflow aspects. It’s essential to select a platform that meets your specific needs – in this case, if detecting fake engagement is a priority, a platform like Flinque can be particularly useful.

Remember, the effectiveness of these markers can vary, as fake engagement techniques constantly evolve. Therefore, continually updating your knowledge and using comprehensive influencer marketing tools remain crucial for accuracy.