I look at bass playing more simply. When a guitar player critiques your playing, it doesn't matter much as you could return the favour but are too polite to do so, nor do you want to bother wasting your time any how. Now when this gets interesting is when that happens at a gig and as you walk off set, a patron calls out, "Great bass playing!" "Don't get to hear playing like that every day". That actually happened as written one gig, so I turned to the guitar player and simply smiled. I think I heard one contributor here refer to them as "gui****s"?