Unless I missed it in skimming The Fine Article (I have a couple minutes between standup and another meeting, so time constraints), they're overlooking an, IMO, obvious tell. For months now, whenever I've clicked on one of the "trending" stories in the right sidebar, I've seen a wall (not intended) of public posts that are verbatim, to the terrible grammar and obvious non-native English speaker phrasing, copies of on…
Remembering that almost all of facebooks growth potential is outside of the US. Facebook really cannot afford to just kick off people based on not being us college students.
The problem is that while it might be easy to find someone who diverges from what the nytimes think the correct mainstream should be from a beltway centric viewpoint, it's far harder to differentiate between a bot and some yahoo posting her local mainstream view from a netcafe somewhere in Siberia.