Why are soo keen about Draupadi? It is just that you want to highlight something in Mahabharata which looks like a flaw and you want gain weight to your argument, you are such a sick foolish CRAPPY fellow i've ever seen.
First thing Mahabharata is just a tale which at length describes the responsibilities to be fulfilled by every human to do the 'DharmaSamsthapana'(Instituting Justice in the rectitude) in the society.
Now read this to understand why Draupadi has to marry five people. And how she can distinguish the father of her children.
"Draupadi is the only instance we come across in epic mythology of a sati becoming a kanya. It is stated that in an earlier birth as Nalayani (also named Indrasena), she was married to Maudgalya, an irascible sage afflicted with leprosy. She was so utterly devoted to her abusive husband that when a finger of his, dropped into their meal, she took it out and calmly ate the rice without revulsion. Pleased by this, Maudgalya offered her a boon, and she asked him to make love to her in five lovely forms. As she was insatiable, Maudgalya got fed up and became an ascetic. When she remonstrated and insisted that he continue their love-life, he cursed her to be reborn and have five husbands to satisfy her lust. Thereupon she practiced severe penance and pleased Lord Shiva with her prayers. He granted a boon to her. Nalayani said that she wanted a husband and to ensure that her request was heard, she repeated it five
