system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] If Qui-Gon and Obi-Wan managed to capture Maul, how much information would the Jedi be able to learn?
gpt
Not much. At least, not much more than they would have already known from history and could have guessed from Maul's presence alone. Even though the Jedi were already aware of the Rule of Two, they were also of the belief that the Sith had gone extinct long ago. So Maul's presence as an actual Sith apprentice would be very troubling, but perhaps not the worst thing they've ever encountered. Because while Maul is imprisoned, they'd assume that the Sith's strength had been cut in half. 

On the other hand, while Maul was indeed a full-fledged Sith, he still only knew what Palpatine wanted him to know. Maul was more of a blunt object, a weapon to be used at critical times when Darth Sidious needed something taken care of. So he didn't need to know any intricate plans or long-term goals other than destroying the Jedi. Which is something the Jedi have known about the Sith for a longer time period than the Republic has even existed. It was Dooku who got many of the juicy details, and would have been a far more valuable catch a few years later. Hence all the efforts expended to try and capture him, though none succeeded.

There's also the fact that Maul would have resisted interrogation, and used his own skill with the force to block attempts to forcibly read his mind. So trying to extract information out of him would have been a long, frustrating, and complicated endeavor. Not impossible, because we know Maul has his limits, but it wouldn't have been worth the effort in the long run.