Not scriptural? The WTS uses scriptures here:
*** w06 1/15 p. 23 par. 13 Do Not Allow Place for the Devil ***Because of listening to the Devil and not rejecting his lies, the first human pair apostatized. So, then, should we listen to apostates, read their literature, or examine their Web sites on the Internet? If we love God and the truth, we will not do so. We should not allow apostates into our homes or even greet them, for such actions would make us ‘sharers in their wicked works.’ (2 John 9-11)
***w042/15p.17par.9GuardAgainstDeception***How can we guard against being deceived by apostates? By heeding the advice from God’s Word, which says: "Keep your eye on those who cause divisions and occasions for stumbling contrary to the teaching that you have learned, and avoid them." (Romans 16:17) We "avoid them" by steering clear of their reasonings—whether in person, in printed form, or on the Internet. Why do we take such a stand?
First, because God’s Word directs us to do so, and we trust that Jehovah always has our best interests at heart.—Isaiah 48:17, 18.