“It’s not clear whether these “surrogates” are actual media employees, or simply private volunteers who agreed to go on social media and shill for Hillary.”
No, it’s clear. Those are listed as 2 separate categories in this very email. The 372 are specifically media surrogates, provided with talking points and trained to defend Hillary on-air, while the 15,000 are the shills who are being directed via email what to post on social media each day.
Ok, yes, I see that now.
The summary is clear, but the link does not take us to any specific emails, just to the WikiLeaks site. Do you have search criteria that can take us to emails that will support the claim made in the thread, about the 372 media shills?