Don't write alone, they say. Involve your members, because RPG means interaction.

Well, it means interaction between characters, and this could be achieved even if they are written by only one writer.
 
What if the members CAN get involved, but they don't want to? I would have liked to involve them in all threads, to have characters of all kind (not only NPCs) shared, or at least to have discussions among writers even if I have to write some threads alone. They seem to simply not be interested. 

In this case, isn't better to write the story alone, than have the chapter missing from the whole story, and "left to anyone's imagination"? Don't we write to let out the story prisoner in our minds, and have it read by our readers, as few as they might be in certain cases?

I am still pondering, in one case, if to write a thread wholly alone or to wait for the potential involvement of two other writing partners. Yes, they can be involved and I'd love them to. I think their contribution would add to the story and it could be also good character development for their own characters, if they care to develop them. This is the main issue - if they care to develop them, if they care to get involved. Because one hadn't written in his ongoing threads for 3 weeks, and I don't know when he'll write again, if he will be available for another thread and if, assuming he'd join, he'd do this thread the same thing (making me wait 3-4 weeks or more for one post). And most of the above could apply for the other too. People who post at 3-4 weeks, and in 3 weeks I can finish the whole thread alone.

Decisions, decisions. I have stopped, though, with an opened thread, waiting for them to see if they want to get involved. If not, I can get ambitious and finish the thread alone in one week-end, some day.