Kho, even with all the plots I have in my thread, and all the views I get, I have the most success when I pitch an idea to someone directly. It helps if I've seen that they have something that dove-tails with one of my ideas (I have one where someone wanted an historical RP, and I had something involving the Hellfire Club.)
And, most of the time, it's someone that I've chattered with about non-RP stuff.
Even if you just drop pretty pictures in the Finder/Seeker threads, that's another chance for someone to see what you like, and maybe hit your signature links. That's one of the reasons I prefer a single list - it means that I can link a single thread of ideas so that people who have seen me around can do a little one-stop shopping. I organize by topic, and then if I'm pitching a story, I can link someone directly to the post in question so they don't have to go sorting too much.