Sure, but what was the saying? "The most likely scaling problem is that you aren't going to have any scaling problems."
It sounds like you're trying to reapply a principle from software development to online community building?
LW has scaled. Lots of people read this site. Our last survey got over 1000 respondents. (This may not sound like much compared to e.g. reddit, but there are lots of dead little online communities that no one sees because they're dead; being dead is the default state for an online community. The relevant norm is /r/LessWrongLounge, not reddit as a whole.)
I told an intelligent, well-educated friend about Less Wrong, so she googled, and got "Less Wrong is an online community for people who want to apply the discovery of biases like the conjunction fallacy, the affect heuristic, and scope insensitivity in order to fix their own thinking." and gave up immediately because she'd never heard of the biases.
While hers might not be the best possible attitude, I can't see that we win anything by driving people away with obscure language.
Possible improved introduction: "Less Wrong is a community for people who would like to think more clearly in order to improve their own and other people's lives, and to make major disasters less likely."