Ali Sina vs Khalid Zaheer and Ghamidi

Last year in September, Ali Sina, an ex-Muslim, and Javed Ahmed Ghamidi, one of the leading scholars of Pakistan, were requested to engage in a debate around the criticism that Mr. Sina had launched against Islam. Both accepted the proposal with Dr. Khalid Zaheer, a former professor of Lahore University of Management Sciences and currently an academic at Al-Mawrid institute, representing Mr. Ghamidi. The debate last a few months and continued until earlier this year.
The text of the debate is quite interesting to say the least. Dr. Zaheer's premise was that Quran is the book of God, and it is only Quran and Sunnah that he would defend Islam upon. From the very beginning, he made it clear that all discussions should take place with this assumption in mind. On the other hand, while Ali Sina started off with criticism on Quran, very soon the bulk of his arguments was based on Muslim beliefs and practices and his understanding of Islam based on hadith, history, and other works on Islam.
Ali Sina boasts a reward of $50,000 to anyone who 'proves' him wrong on charges he has brought against Prophet Muhammad (pbuh), and 'proves' that Muhammad (pbuh) is the true messenger of God. In the beginning of the debate, Ali Sina agreed that the debate is not for polemics but for finding out the truth. But unfortunately, in the exchange that he carried with Javed Ahmed Ghamidi and Dr. Khalid Zaheer, the tone was nothing but libels against Islam, discrediting all arguments brought forth by the scholars. In addition, the arguments brought forth by the Dr. Zaheer were often not addressed and instead, derogatory charges were brought against Muslims time and again.
It is also interesting that Ali Sina held Dr. Zaheer and entire Muslim community guilty of actions of some Muslims. For instance, threats for apostasy made against Ali Sina led him to conclude that that was what Islam preached and that was what all the Muslims wanted. Irrespective of Dr. Zaheer's negation that apostasy in Islam ought not to be punished, Ali Sina not only insisted upon it but also concluded that all Muslims are, in fact, simply mendacious. Obviously, any debate which accuses the other party of lies when they present their opinion is not quite a debate rather merely an invective. Such was the tone on which this discussion ended.