Rediff is allowing this kind of discussions board for 2 reasons. 1. Freedom of Expressions 2. More vistors to their websites.
This is INDIA. religious feelings/believes are more important to people than the development of India.
Hence, one dog comes and blame one community, and some will come to answer than. this way, visitors to this website increases. And if you notice, you'll see small text & graphics adds in this forum. this is ADS by which rediff gets more money.
Hence, some idiots will come here and fight in the name of religion and rediff makes money out of it.
After all, rediff is not an charity organization, it needs money to run & survive on internet.