I am not sure why but lately I've noticed two basic personalities among SL avatars, I don't know if SL makes you like that, or everybody tries to get in the same boat and act that way because it is a trendy thing. I've been in SL for around some time and back in the days I noticed people were more genuine, but nowadays, besides of 'pailed-looking-white-haired' avatars everywhere, there's also a trend in the way people react;
1. Man try to look alphas, dominant, they even try to sound like a greek god movie star when on voice. It's sad.
2. Women act like cold, very sexualized mean [ladies] you can't even afford to look at them because of so hot they are.
Now I would accept these as individual personality trait, but not when 90% of SL acts this way. It's so fake and disgusting, people pretending to be something they are not only to be tagged as cool, popular, or because they feel the need to fit in. This Virtual World definetely lost what made people genuine here.
Most populated places now are only people described above, avatars with static poses watching each other for hours without even engaging in any kind of interaction, it's so sad.
Only places I still find some genuine people are in newbie landing areas, I suppose new joiners discovering this world still got the same "innocence" and admiration to discover new things and be what they really can't in RL. But then again, eventually these guys will also turn into SL snobbism.