Well, if there are rules regarding point of view than me and a few others have been doing it wrong as well.
I for one rather enjoy adding side stories to flesh out the world. If you want to add ssomething do it, if you think it will end up as nice branch of its own then perhaps consider adding a prefix. Monsta has been doing that for all of his larger branches and it works really well.(ie. Internet unleashed) I should probably do it myself as well. :p
However, I am not the owner, nor the creator of this site and the main stories. I am also not a veteran here, so take my opinion for what you will.