FEATURE - dedupe users who have multiple mixpanel accounts?

[fivetran-jamie]

so, customers can store their internal user_ids (or whatever they might call it) in an event's properties. this is different from the event's distinct_id, which is a unique identifier for the Mixpanel account. One person can get associated with multiple distinct_ids in Mixpanel, perhaps by using a different device or triggering events while signed out.

wondering if we should offer the ability to perform event-deduping and/or sessionization at the REAL user level (not the distinct_id level). will check out our sample data to see if i can find any cases where doing so would make a significant impact