people who claim to be salafi or Muslim brotherhoods where the leaders say to their followers do not discuss so that you do not fall.
Following blindly is bad.
These people forgot that our prophet PBUH allowed his friend to discuss with him.
And also when Umar ibn al-Khattāb allowed a woman to ask him a question, those who do not know Umar ibn al-Khattāb can hhave a look at this link
http://en.wikipedia.org/wiki/Umar
More information can be found in the Islamic websites for those who are interested.