The Likes-Comments Ratio shows if an Instagram user gets more likes or comments. A significant difference from similar accounts might mean that either the number of comments or likes were increased artificially.
A major difference between either the comments or likes number can be an indication of an artificial boost. If an influencer purchases same number of likes along with same number of comments, all the dots will be concentrated in a bubble. A chaotic distribution of dots can indirectly indicate an organic level of engagement.