The only thing that popped up on the radar was Axanar because of the scale, and the fact that they also used accurate replicas of uniforms and stuff like that. Renegades was basically glorified Fanfiction. Axanar was basically trying to be a full fledged installment of Star Trek. That and they were going to make money off that soundstage and a couple other details.
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That's not quite true. Alot of fan flicks have used highly accurate replica's of both uniform and sets.
The main I.P gripe (and pretty much the be and end all) is the monetization/profiteering issue. (And in that case you are correct).
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