I will confess, I don't troll the army lists much. I am not a competitive player (I'm more a frustrated modeler and modder than anything else) and when I play, it's for fun. If I find myself up against one of those WAAC (Win At Any Cost, for the uninitiated - I was for a long time) guys, I will take the dive every time. Why? Because the one time I gritted my teeth and pulled out the win - by luck of the dice, I claim no particular tactical skills - the guy kept coming back. Even after he won the next week, he came back, week after week, it was like he had something to avenge or prove or something.
I did learn tactics and unit builds from him, mostly by dint of having it beaten into me by the flavor of the week army swinging the dismembered corpse of one of my Fire Warriors. In self defense, my army building improved - by which I mean that I can now throw an army together in five minutes. Oh, and I learned the Creed of the Markerlight very well indeed. But army lists, for me, seem to be about folks wanting suggestions for nastier and more killy builds, irregardless of theme.