I unfortunately had to do that recently after an RP I was given died after three years of going. I wish it could keep going because it was an awesome RP, but, well, three years is nothing to be ashamed of. I was in it for two of those three years and had co-ownership for half that, then a little bit towards the end when I received sole ownership of it. I ended up giving control of its fate to the assistant GM in the hopes that a fresh look from the top could possible give it new life, but I honestly don't have any hope for it. It's currently just him and two other people, where we once had 20-something people spread across its board on the site we had to move it to due to the fact that it got too big for one thread.