the word
Bright -- as a noun (refreshing!)
Bright -- as a meme (hopeful!)
Bright -- as an umbrella term (definitive!)
the reason
Currently the naturalistic worldview is insufficiently expressed within most cultures. The purpose of this movement is to form an umbrella Internet constituency of Brights having social and political recognition and power.

The simple noun Bright gathers under the same umbrella a great diversity of persons who have a naturalistic worldview. Under this broad umbrella these people, as Brights, can gain social and political power in a society infused with supernaturalism.