What are some bad points about social networking?

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I think the one of social networking\'s bad point is conversation.

>> I think one of social networking\'s bad point is that it affects conversation.

OR>> I think one of the disadvantages of social networking is that it affects personal communication.

After the social networking became more popular than past, most of household\'s conversations have been cut off.

>> After social networking became more popular than before, most of household\'s conversations have been cut off.

Nowadays, many people using the social networking without meeting face to face even if some people are talking about something very important topics.

>> Nowadays, many people are using social networking without meeting face to face, even if they are talking about some very important topics.