Companies implement multiple strategies to store and reuse influencer discovery insights:

1. Campaign Reports: Most influencer marketing platforms, including Flinque, offer detailed post-campaign analytics which include influencer performance data. These documents can be saved as reports for potential reuse in future campaigns.

2. Influencer CRM: Some platforms, like Flinque, offer a built-in Customer Relationship Management (CRM) system. It allows for the tracking of influencer relationships over time. In these systems, historical data and insights about each influencer can be stored and used in future engagements.

3. Tagging and Note-taking: Features such as adjustable tagging and note-taking systems in platforms help in grouping influencers based on different aspects like engagement rates and audience demographics. These tags and notes can be reused for future campaigns.

4. Saved Searches: An effective way of reusing discovery insights is to save searches with specific criteria. If a search yields useful influencers, the same criteria can be used again for discovery in the future.

5. Import/Export Data: Some platforms allow users to import/export data, thereby facilitating data reuse across various campaigns.

The reuse of influencer discovery insights depends on the features offered by each platform and the specific needs of the marketing team. Flinque, for instance, has robust CRM, tagging, and note-taking functionalities, making it conducive to storing and reusing valuable campaign data and insights.