As a veteran snagger and liner or lifter I must agree that they DO BITE- if conditions are right and they are in an unmolested state and proper presentation with the right stuff. It aint happenin in a conga line.
I never did the bunker snagging equipment thing but over time got so I could line most anything I could see and some I couldn't see. Back then firmly believed that they generally don't bite so it was OK- as do many on the SR.
With the help of this forum I now understand the unique styles and systems ( to a point) and endeavor to FISH for my Salmon- this often requires one to go fishless days with many fish around and others in sight hooked up regularly -but it certainly is worth the effort.
Believe the first thing one must generally accept is the fact that when FISHING you aren't likely to have those big number days but you will go home with a deeper appreciation for your day afield and each fish you CATCH. The big number mentality gotta go though.
All that said even while FISHING and not intending to lift or snag those things still happen- just too much meat in some some water with the hook passing through-- but now it isn't the intended result.
I really think the first most important step to morphing into a FISHERMAN on this river is to accept the fact that you will likely NOT have 40 fish days but must be happy occasionally with one fish days after lotsa work- and be really happy with only a few in the course of a trip - instead of an hour.
Good luck-A good guide might teach you in one trip what it took me far too may years to learn.