I loved the way that you'd pass encyclopedia checks in the game and it would give you totally irrelevant information. I think at one point a character tells you she's using a contact mic and the skill check informs you about a boxer called "Contact Mike".

Or in other cases, completely relevant information, like the complete life history and works of Doloros Dei, which is simply unactionable as she has been dead for decades and the church is long-abandoned too.

Contact Mike is one of the most important encyclopedia checks in the game, honestly.

Its one of the few direct hints you get to HDB's backstory before the literal last scene, which can actually give you actionable insight in a couple scenes IIRC.