I'm fairly new to bass fishing...I was raised on hook & bobber bluegills with either earthworms or waxworms. So I look at it this way: I don't catch enough bass yet to make a difference one way or the other. I mean, 4 to 6 bass a year is not going to ruin the bass ecosystem in my area if I decide to eat them! Maybe when I get to the point where I catch them every time I go out, I may feel different...but until then, they're going home with me.
For me, half the fun of fishing is the eating. But like I said, I was raised watching a bobber, so if and when I start catching a lot of good sized bass, I may feel differently.