I think SporeTalk should be skipped unless you have something to say about Spore. (e.g. if your emergency rations exist, use them!)
I think SporeTalk is very essential. There are a lot of people that came to Gaming Steve because of the awsome Spore forums (Me one of them

) and I get the Podcasts mainly to hear about this wonder of a game-to-be. Keep SporeTalk!