Should we edit out useful links to likely offensive websites?
This question is motivated by a question at meta.Islam.SE: Should we forbid linking to anti-any-religious groups sites?.
The problem is that there are anti-Islam and anti-Islamic-sect websites around which people read and ask questions about at Islam.SE (often in an attempt at debunking the claims). The authors of these posts sometimes provide a link to these posts because they provide valuable context. A problem arises since the material at the linked (external) sites can be reasonably regarded as offensive.
A typical example follows the narrative:
Muslim reads anti-Islam website.
Muslim thinks "I'm sure that's not true, but I can't immediately disprove it."
Muslim asks on Islam.SE if it's true, providing the link to the anti-Islam website.
The author is not trolling, or deliberately engaging in harmful behavior (usually they're Muslim themselves). They are asking a question and providing useful context in the form of a link. However, the contents of the linked site are offensive.
Examples of such websites are: 1. The Religion of Peace which contains a lot of violent images; 2. WikiIslam which pretends it's impartial, but predominately hosts anti-Islam claims; and 3. Answering Islam. All of these sites are unafraid to provide content that Muslims would universally consider offensive (e.g., using words like "paedophile" to describe the Prophet).
This problem belongs in the gray area between censorship and not hosting offensive material, and it would be helpful to get advice from those who have experienced this problem previously.
The closest related post I found was http://meta.judaism.stackexchange.com/questions/1632/censoring-comments at Judaism.SE, and it argued against forbidding such links, but the community didn't seem to strongly support it.