As the Product Manager for Instagram Stories, you're contemplating extending the duration that Stories remain available. What metrics would you examine to inform this decision?

In this question, the interviewer aims to gauge your approach to making a product decision that could influence user behavior and experience on Instagram. They want to assess how data-driven you are in your decision-making and your understanding of the important metrics for a platform like Instagram. To effectively respond, concentrate on identifying, explaining, and justifying the key metrics that are particularly relevant when evaluating the possibility of extending the expiration time for Instagram Stories. Keep in mind that Instagram Stories are temporary and vanish after a set period. Thus, you should consider how altering this feature might impact user engagement, encourage user-generated content, and shift the perception of its value, among other factors.

A crucial metric to examine is user engagement. In particular, I would assess the average view time for Stories. If users are not viewing the entire story before it expires, it may be beneficial to extend the time limit to enhance engagement. Additionally, I would investigate the bounce rate for Stories; a high rate of users exiting midway could suggest problems with the current time limit. Another important metric to evaluate is content generation—are users regularly creating and uploading Stories? If many users only post Stories occasionally, extending the expiration time might motivate them to post more frequently. I would also analyze audience metrics such as Story views per user and completion rates to determine whether the content in Stories is appealing to the audience. User surveys could offer valuable qualitative insights regarding this matter. I would like to understand if users feel constrained by the existing expiration time and whether they would prefer their Stories to remain accessible for a longer duration on their profile.

To start, I would certainly examine user behavior metrics, particularly the frequency and duration of views on current Stories. An increase in the expiration time should ideally result in more views; however, it may also lead to a decrease in the average view duration per story, as users could distribute their viewing time over an extended period. Next, I would analyze metrics that reflect the amount of content created and shared through Stories. A change in expiration time could influence both the quantity and quality of Stories that users share. My focus here would be on the total number of Stories posted per user, the frequency of batch posting (i.e., when users upload several Stories at once), and the rate of repeat usage. It would also be beneficial to assess reaction metrics, such as direct messages and the responses generated by Stories, since a longer expiration time might impact the level of engagement a Story garners. Evaluating the potential trade-offs between the extended availability of Stories and the possible reduction in user engagement would be essential. Lastly, we should consider competitive data—if other platforms are providing longer or even unlimited expiration times, we need to determine whether Instagram is losing users as a result.