Noticing Discrepencies

[unspeakablehorror]

I wonder if people recognize bad arguments for conclusions they disagree with better than they do for conclusions they already agree with.  Which is to say, I wonder if someone could more easily point out actual real problems with an argument they ultimately disagree with, like circular arguments, strawmanning, ad hominems, etc., but if it would tend to slip under the radar if they do agree with the argument.  Intuitively, this makes sense to me, but one should never accept a conclusion on intuition alone.