In my opinion, one of the main reason the internet is so colorful and interesting is conflicting groups. Many people (including me) lacks the self confidence to truly express themselves in real life. Give them anonymity, they will. A lot. Here are some common types of conflicting groups.
The Fragile - People who get offended to everything and expect everyone to give a fuck.
The Great Offender - People whose only intention is to find them and offend them.
The Hater - They truly hate everyone successful
The Praiser - They don't know the limits of admiration.
The Imitator - They can mimic both of these guys to make sure they meet on the same medium.
The Helpless - These people reveal their weaknesses seeking help or advice.
The Heartless - These people seek weaknesses to exploit them.
The Chatrouletter - These are bored people. They want a decent conversation with random people.
The Wanker - They wank. And they want the Chatroulette community to watch.
Decent Social Media User - They don't do anything abnormal. They only use the social media to share their remarkable moments and check in with some friends. They don't make anyone facepalm.
The Attention Seeker - They will let you know about what they are up to all day everyday.
Social Media Gamer - They want everyone to contribute to their farm. They will keep inviting you until you kill them.
The Hacked Network - Thanks to people like this, the viruses will spread around like the black death. They will even click on a link that ends with exe and double click on the downloaded file to see what's inside them. They will send you messages and fill your feed with viagra ads.