This is true. With anyone being able to join, you might end up recommending comics that you don't personally like or that are a poor fit for your target audience.
Thus the all volunteer nature of the idea.
It seems to me that the idea of a banner exchange got a pretty resounding no. This idea supports everyone equally. The catch is if you are either all the way in or all the way out.
It looks like there are only 4 or 5 people interested. For that many it hardly seems worth it. And no one has volunteered to design the button.
Simply put; this is all blah blah blah until someone takes action. I'm not doing anything until people put their feet on the line and say "Yes, I want to participate in this. I will create a banner for the page and I will post the WC button on my site and link it to said page."
And then someone has to design the button.
So until all of that happens it's kind of a pointless discussion. It's like trying to decide what you are going to have for dinner when there is no food in the house and no one is hungry anyway.