If it helps the players of Free to learn to be creative to just add a single twist to a "default" setting, then think that is a good start. Everyone has to start somewhere. There's a known tendency for the mean age in the free section to be considerably lower than the mean age in Advanced. What might seem intricate to one who is still in childhood, oft-times is anything but intricate to someone who is an "adult". 

When you get a lot of RPs in a single category in a section, you'll have potential GMs get inspired by them. [quote]That ain't how I'd do it!

I'd do it like this:
....[/quote]

Not really having browsed any of the IntCk sections recently, we can't say what type of RPs are most common where, but even if you go with a purely classic plot, there are a number to go with. For example, you can go with the basic "school RP" as described in this thread. You can go with the classic "band of heroes on a quest to vanquish evil", or a score of other classic plots.

For that matter, if you're wanting to just be a little creative, why not reverse it? Say, gather a band of [s]heroes[/s] villains to vanquish good?