Yknow Art Fight?
Art Fight is happening right now and it's got me thinking… What about doing something similar but for RPC's? People with valid author's pages all pick a side, and then "attack" one another's pages/articles with additive stories, details, addenda, test logs, interviews etc.
Of course, there would be a certain level of quality required, and the receiver of said "attacks" can decline the additions. Perhaps in signups you can choose which articles to include or exclude from the event. Maybe each participant gets a maximum of 5 articles to participate in it?