There is such a thing as lost creepypasta. The thing however, is that not all of them are cameraheads or the soviet russia kills god story that inspired the GOC.
Some lost creepypasta actually got into this wiki's "article listing" page, which was basically the storing zone for articles. It ended in 2013, but that mean's that there could be some lost pasta titles in there too.
Lost Pastas:
A. (Yes, the pasta was just called "A")
The adventures of André and Wally-b. (presumably about a lost Pixar movie)
Anathema (unsure of what it could be)
(There's probably more, but the article listing pages are very long, so other people may have to help)