[@Ammokkx] I feel like this probably shouldn't be allowed or encouraged but it's hard for me to care at this point...

But one thing I haven't ever mentioned or even really thought about, is a component that could make an RP different from a solo story. Where you have to be conscious about what other people are writing, as well as your own. (To avoid repetition.) So when people are reading, it doesn't come off the same content over and over again. So the idea of every, or the majority of people in a role-play doing the exact same thing to introduce their characters isn't entirely their fault, but it also shows the storytelling flaws that can persist in roleplaying. Background detail filler is another particular problem where there's multiple people describing the same setting. 

(Though I am kind of curious what particular thing you're describing. Totally Pm me. [s]I'm mostly kidding?[/s] :P)