My experience is that trying to detect lies is only ever a thing that happens when someone makes a skill for it.Probably a wisdom roll. Stat checks were a thing back then.
Sometimes skills open affordances - while I would agree Rope Use is not a good skill, I did see more players trying to do clever things with ropes during 3.0 then I ever saw otherwise. But sometimes these apparent affordances are just bad, like in the case of Insight/Sense Motive.