In the 50th anniversary year of the Star Trek franchise CBS and Paramount are marking the occasion by pushing on with their lawsuit against the Axanar "fan film" (despite what JJ Abrams said the other day) and have issued a set of guidelines for future fan films that effectively photon torpedoes most projects.
You could argue, and many have, that the Axanar team brought this down upon themselves by "going too far", crowdsourcing too much money, using professional actors etc - all points now specifically prohibited under the new guidelines.
And while I'm a staunch believer in people protecting their IP and I understand that, of course, big companies want to make money off of their properties, Star Trek owes its very existence to the power of fandom.
When the original show was about to be axed after its second season, it was a fan-driven letter-writing campaign to the studio in the late '60s (the first of its kind) that persuaded them to give the show a third season.
This, in turn, meant enough episodes were made to put the show in syndication... and that's where its popularity boomed and the franchise really began. Without the letter-writing campaign, without the fans, there would be no Star Trek today.
So, surely now some kind of middle-ground could have been negotiated in regards to the creation of fan films, that wasn't so detrimental to the hardcore who have supported this show for five decades?
You only have to look across the way to Star Wars and how Lucasfilm handles its fans to see the wonders a bit of goodwill can do. It even gives out awards for fan films!