"Star Trek novels exist because Paramount realized they weren't getting a cut of the fanzine market."
The previous entry has been adjusted accordingly.
On the other claw... is that just a specific example of the "Sufficiently Established Franchise" rule? It certainly set the stage for the incorporation of fan writers into the Official Canon.
On the gripping hand, it could be said that Star Trek fell prey to the Second Law in the second season of the original series, when they accepted a script from an unpublished college student who sent in a pile of unsolicited script submissions...