I think the thing we, as listeners, don't necessarily think about is that each podcast group isn't just a bunch of friends getting together to talk with us virtually, but it's really the marketing arm for their very real Disney related businesses.
In various forms, most of these podcasts are direct competitors (I don't think enmity is really the best word) - not necessarily for our listening time, but our dollars when it comes to travel agencies, ad-revenue earning eyeballs on their forums, planning tools and "meets and cruises". While we will listen to multiple podcasts in a week, we will generally choose one
travel agent to work with or spend the majority of our time on one message board or even go to one meet.
Given that, I don't expect (or care) to hear Lou on the Dis Unplugged (though he did do an episode of WDWToday when he was promoting his book). There are definite exceptions (thinking mainly of the Parrish brothers - but I don't consider them as commercial), but thinking of them in terms of competitive businesses, I'm just fine with it.
Regarding the rumor thing - I couldn't care less who broke a story first, I'm happy to listen to each group talk about a news item and get their unique take.