I think the problem with looking over the recipes at LTH events is that, on the whole, the things LTHers bring to a potluck are not necessarily what "real' people would bring to a potluck. No one in the real world is going to make their own goose liver terrines wrapped in their own home-made bacon or cover a card table with banana leaves and build a huge caprese salad with heirloom tomatoes and grilled goat cheese.
There might be some inspiration in those lists, such as an exceptional mac and cheese. But I'm guessing a magazine targeting folks going to church suppers is not going to want the vast majority of of dishes that LTHers bring to events. Remember, not only is most of the country not LTHforum, most of the country isn't even Chicago -- or even suburban Chicago. If it were, Hard Rock Cafe and its ilk would cease to exist.
Of course, I'm making a few assumptions, and please Gregg, correct me if I'm wrong -- but I can't imagine most LTHers actually being part of the demographic that would go out and buy a magazine of recipes for potlucks and church socials.
That said, no reason for everything out there to be boring -- but I think that would be more along the lines of a potato salad with a few exotic ingredients (bacon, walnuts, and grapes, or perhaps some crumbled blue cheese and diced avocado) or a broccoli slaw with sunflower seeds, or a better chicken casserole. Maybe a few recipes in each issue of the magazine could be the "over the top" ones for those who are LTHers at heart, even if they've never heard of us. But think about what you'd feed to people who are not members of LTHforum.
As noted by pairs4life, most folks do organize by items -- either assigning or having a volunteer list -- and all the ideas that follow that note are solid.
Additional things I've seen at potlucks and church socials (nicer ones, not the "lime jello and cottage cheese" types -- but still not LTH-like): bacon-wrapped water chestnuts, British-style lamb curry, beef stroganoff, of course green bean casserole, layered salads, Mexican-like dips, hummus with pita, mac and cheese, potato salad (American or German, depending on the crowd), macaroni salad, lasagna, roasted chicken, fried chicken, baked beans, a fair number of different slaws (some with sunflower seeds and ramen noodles, some with pineapple, others more traditional), cheese trays (Cracker Barrel, not Humbolt Fog), sheet cakes (my three standards were an over-the-top lemon cake, an oatmeal cake, and an the Irish-coffee cake) -- those sorts of things. Nice, often "kicked up a notch," at least in suburban Chicagoland, but homely comfort food, not competition-quality exotica.