**NJMasti **is making an intelligent point by using the contradiction strategy. Diwana, why don't you read what she wrote at the very end of her post. She is basically saying that she used to have preconceived ideas about various groups of people....BUT then she got to know them as individuals....and realized that her previous judgments were WRONG. And she's realized that it's better to worry about your own progress as a person instead of judging others.
You're overanalyzing her post, diwanay. Re-read. It's a deliberate contradiction/sarcasm strategy....sometimes even authors will use this in their writings.
Two of those three paragraphs/sentences began with "I think....."
So if you read those the way it was written then there is no over-analyzing.
If it was written in past tense "I thought" or better.. "I used to think".....then I have no problem buying your explanation. :)
Oh! just to let you know, I do know what sarcasm is. :-)