Why do many of the Muslims here debate each other in a way that is...?

Clarifying the truth is waajib upon the one who has the knowledge and ability to do so. So, having said this, if someone endeavours to spead the evils of sufism for example, then this must be clarified for the people; and it's not fitting for anyone to label this as blameworthy argumentation. Indeed, clarifying the truth according to the Book of Allaah and the Sunnah cannot be as such