Rav Nahman of Breslov makes a distinction between learning halacha and reading ["שונה" {Shone}] halacha.

Learning means you go to the source in the Gemara and see how the law is derived. "Reading" means to read it and go on. 

And this later category he says is what makes Torah Scholars the are demons in the Lekutai Moharan [LeM] vol. I chapter 54. [Learning halacha means learning it with its sources in depth. That is in Lekutai Moharan vol I chapter 62 paragraph 6 and chapter 286]

There he says that the "כוח המדמה" power of delusion is always looking for a place to settle upon. And when that power of delusion finds someone who reads halacha, it settles there. And so it is important to never hear words of Torah from these demonic Torah scholars since their ideas in Torahh contain more evil than good. That is to say that even though their words are about Torah so they contain some good, still that good is less than 50% so the evil is the majority and cancels the good.