From my understanding those RPs fell apart due to lacking the GM, especially with Orbitum which had serious potential be big the big dog of the space RPs with the explosion it had.

I tend to stick to my RPs until they die from lack of player interest as even if I go for a long period without IC posting I generally will be around enough to look at applications and make sure things are staying stable.

I do my best to follow the code of honor that says "a good GM goes down with his RP".