It had nothing to do with that, and everything to do with you just being an ass in someone else's showcase thread.
Anyone working in design knows that JK teaches you little or nothing useful for a design career. All of the software is specific to JK, all the development methods (editing style, textures, model software, etc) are specific to JK, etc. If you're really, really good you might be able to show a company that you can do well with very little to work with, but as far as a learning experience goes, it's nearly useless.
It once had a thriving community of players and developers because the most advanced games out at that time didn't look or run much better than JK did. It was easy to edit back then, because we didn't have things like UED or FarCry's editor.
Having a decent website for your business is not exclusively for "virtual networking". It's a portfolio, a web-based resume that demonstrates that, hey, you actually know what you're doing.
If you actually bothered to whip up a simple business site (and for a veteran developer such as yourself, this shouldn't take you more than a day or two), you wouldn't have to individually show me, or anyone else interested.
No, you created the Facebook group so that you could satisfy some personal power trip. You're offering something that essentially has no value to anyone in the JK community. Also, for someone who enjoys "real life networking" so much, I find it rather hilarious you use Facebook at all.
Administrating a Facebook group, even if it became immensely popular overnight, would not jumpstart the community. It would not create a new desire for editing and development, and it certainly wouldn't bring people together.
It's rather simple why those three things exist.
A. Massassi exists for the social factor. While it does maintain the largest database of JK materials, it mainly does so only as an archive and nostalgic purposes.
B. JKhub exists for the editing factor. Anyone who is still interested in developing things for the engine find its resources to be invaluable, and although it is small, it is successful at that.
C. JKDF2.net exists for the multiplayer gaming factor. 99.9% of JKDF2.net is full of the same guys who filled up the Zone years ago, and only hang around there to play more games of JK, for the same reason any gamer still plays old versions of Quake MP, etc.
These communities used to be all in one area, generally that was Massassi. They split off because as numbers dwindled, it was not conducive to these subsets of people. The social community was by far the largest, and thus the editing and gaming communities were often neglected. They forked off into their own areas in order to survive, and any attempt now to rejoin them is not only unrealistic, but a complete failure to understand why they split in the first place. Facebook won't make this better, Facebook offers nothing that would improve that situation.
That's probably because it's the most socially active?