I'm just going off of what I have experienced first hand and what my friends in fishery studies at Auburn have told me. According to them, a bass is stimulated to feed more so from sight, vibrations felt using the lateral line and hunger. Scent is used sparingly, mainly in dingy or dark water and the use taste is nearly non existent. The majority of a bass' brain that involves the senses are geared toward the lateral line, sight and feel with smell and taste having the fewest number of receptors in the brain.
I've always been a proponent of finding fish that are actively feeding or are stimulated to feed through a reaction bite. That fish you pulled out of a bush may have just been in a feeding mood and wasn't willing to let go because it wanted to eat. Whatever the case, to salt your baits or to not salt them is completely up to personal preference. If it helps your confidence like Mark, DO IT! If you don't think it does, don't. It's really that simple.