You see, my problem here is that I can't understand it. The underlying assumption, that some words are more harmful than others, and that hearing them will somehow make life worse for the listener/reader, is something I just can't wrap my head around.
The underlying assumption is that when certain words are used outside of their proper context (if they even have one), they can transfer offensive meanings. A mild example would be "d*mn it", which in its strictest sense is a verb meaning to condemn something, or bring d*mnation upon it. Now that may seem harmless from a secular viewpoint, but from the perspective of someone with even a modest religious background, it can take on a whole new meaning.
Now I'm aware that these kinds of thoughts don't cross the mind of an average person when they use such an expletive. Using it is probably more of a reflex than anything else. But to others who take the words seriously and in their literal meaning, it can be very violative. And thus we try to avoid them.
Same goes for the desire to "open up" content for minors that wasn't intended for them in the first place (or that was created without special consideration for them).
My understanding was that FreeSpace, despite the mild violence and language, was aimed for all audiences (including minors). Hence the E rating the game received. I was hoping that a lot of the fan-made campaigns would have similar aims, and I haven't been entirely disappointed. Cardinal Spear and The Procyon Insurgency both seem like decent campaigns that are devoid of anything really objectionable. Needless to say, they will probably be getting much use on my brother's computer.

If NeoKnight wants to clean up campaigns for the young ones, it's not our place to instruct him otherwise. I think we should just let that topic be.
For the moment, NeoKnight, it's probably not going to be considered a priority, but you can feel absolutely free to do so yourself.
So weighing the entire situation as a cost-benefit scenario, it seems that constructing an integrated censoring feature isn't in the best interest of this community. I imagine that only a very limited number of people would use it, and there are many other projects that could be worked on instead and that everyone would probably appreciate. I understand that so I don't think I'll bring up the subject on the SCP Board. However, I might look into doing some modifications on a campaign-by-campaign basis to make them as decent as possible. And maybe someone besides me and my brother will actually play them.
You're pretty much on your own with this, though we can provide tech support in case anything went wrong.
Thanks, I may need to take you up on that offer.