There is a discussion about whether it is appropiate to source racist sources, see Antisemitic or Racist Sources. On one hand it may be problematic to indirectly promote hateful content and subject to abuse, on the other hand notable claims should be addressed regardless of how odious it is.
Additionally, it deflects from the actual issue https://en.wikipedia.org/wiki/Shooting_the_messenger, and leans into fallacies such as Guilt by Association.
Considering the scientific method,
notability is highly vague and open to interpretation. This is made worse when claims are viral and nebulous.
Perhaps a more scientific approach is needed, one that does not require linking to popular hateful sites or struggling when a claim is notable but nebulous; one that is based on statistics. This would solve both problems.
Statistical analysis is not a new idea, for example; trending Twitter hashtags, Google Ad-words, SEO marketing tools all employ similar techniques.