I've already mentioned that. Any modifications, and restrictions would make factions more reliant, and of course would somewhat force players to uphold those standards. Preferably, you wish to lure players with content, without forcing them to like "play." As it currently stands, official factions are primarily there for validity, and then for everything else. You can maintain quality as an unofficial faction, but you are well aware of why most players prefer official factions. You still have official factions.
As for OFs, when I mentioned validity, it would be expected that you keep those standards. As an unofficial faction, you're not required to do so at all. Of course. That's obvious. And, you anticipate rewards as an OF, without really glancing back at general approach to the game. Part of it depends on the dynamic of the game, and progress of the story, balance, and whatever else that inspires people to play. It'd be beneficial if players would suggest solutions, and present what would "motivate" them. I mean, credits and similar things really don't mean a whole lot if you already have enough for your needs. That'd everything that I wished to underline. It would be pleasant to see changes, but first, players need to come up with something reliable. Which is kind of difficult with the current ambient imo.