Fine. Yes, I have considered trying out Star Trek Online. I admit it. Now, check out this little snippet from the FAQ:
What’s more, anyone can create their own species in Star Trek Online, meaning you can tell your own story about how you came to be in the galaxy. Leave your mark on the Star Trek universe!
Yeah. I’m going to have to go ahead and caution against this. If you’re a fan-fic person or heavy RPer and want to get your stuff out there, by all means go for it, but if you’ve had a cool sci-fi idea kicking around in your head for a while and think this might be a fun way to try it out before writing your novel, please don’t. If this world is the Star Trek world, and the Star Trek world is owned by CBS, can we assume that anything that happens in this world is owned by CBS? Considering the successes Blizzard has had in this arena, I see no reason why not. Either way, I think it is safe to assume that CBS has better lawyers than you do. Be warned.