I'm not at all convinced; the students in the article are getting by because they have no particular fear of false positives. They're just some guys saying "yeah, looks like a bot!"

Twitter has a much harder post-discovery choice. Do they disable or publicly flag accounts, and catch flack for hitting real ones? Or do they monitor internally and wait for high confidence, then get in trouble for not doing enough?

I don't see how Twitter could offer a comparable service even with a comparable tool; being the official overseer of the question leaves them with too much responsibility.

Or at least they aren't publicly