Heh, MP, I've heard that american part of LJ is like that... Russian is quite different.
It started with some well-known profesional writers/journalists/profeesors using it as a playground to discuss things with each other in private. As a result its main boost was from well-educated people interested in politics, art and culture (besides, at the time there was no russian interface). Sure, once it got popular, we got our share of moaning teenagers, but it already established itself as an unofficial media outcome. Just to give you an example, I'm going to open my "friend-list" and list five top posts:
1. Post about being able to take life less-seriously (related to April's Fools day)
2. Discussion of personal gun laws in Russia and whether allowing personal weapons would lead to increase in violence (right now they are banned)
3. A post about one's mother, how around 70 she started preparations for her own death, including purchasing a casket. Now she is 82 and still alive and functional.
4. Fresh impressions of a russian anthropologists who is temporarily working/studying in Florida.
5. Post about pro-gun demonstrations in Moscow.