Bad boys of social networking

Guys

There are so many social and media networking site around the globe these days that every person who uses internet is part of one of these sites. Is this helping anyone. Majority users use these sites to either infiltrate into others privacy and some loves to show off. This seems like a waste of time for many and resources. There are had to be some way of maximize the utility of such a large community as a whole. The recent events involving few bigger social networks over internet seems to create religious and racist hatred among many communities. Question is; Is it planned? Do these sites really want this? Don't they know it will turn out to be like this?

Are my questions tough?.........

:)

SITE USERS

FitFinder Facebook 400,000,000[61] Qzone 200,000,000[209] Habbo 162,000,000^{[103][104][105]} MySpace 130,000,000[173] Windows Live Spaces 120,000,000[271] Orkut 100,000,000[196] Friendster 90,000,000[85] hi5 80,000,000[107] Vkontakte 75,200,000[255] Twitter 75,000,000[253] Tagged 70,000,000[236] Badoo 67,000,000[13] LinkedIn 65,000,000[141] Flixster 63,000,000[75] Netlog 61,800,000[180] MyLife 51,000,000[170] Classmates.com 50,000,000[36] Odnoklassniki 45,000,000[189] Bebo 40,000,000[citation needed] Flickr 32,000,000[77] WeeWorld 30,000,000[267] Last.fm 30,000,000[136] MyHeritage 30,000,000