It tends to reveal a lot of extra information, even when you're playing it straight rather than trying to trick the AI.

Like, when you ask the "does the reason the window is open matter?"-style questions that should be bread and butter for this kind of game it'll often go beyond a "YES" into "YES, the reason the window is open provides crucial context to what they were thinking". The worst case was me asking whether somebody died via foul play, and the AI answered "NO. Your question is whether he was intentionally killed rather than it being a <spoiler> accident".