That's right, the current origin system just isn't as granular as I'd like it to be. IE: it tells me I got X views from reddit, but if shared it in 3 subreddits, I don't know which ones were more effective.
Being able to share it with a single person and know if they actually opened it or not would be another use case.
Also, seeing the stats for the last 7 days and the last 24 hours (source, subscriptions, etc.) would allow writers to get a sense of what they recently did in terms of marketing that may be working best. 30 days is too long to be able to see if a particular action had any impact.
Being able to share it with a single person and know if they actually opened it or not would be another use case.