Will social media companies crack down on the racist conspiracy theory behind the Buffalo massacre?

The names of the ten people killed in Saturday's shooting at Tops market are part of a makeshift memorial across the street from the store in Buffalo, New York. — AFP

The Buffalo, New York, mass shooting that claimed 10 lives Saturday was an event shaped by, and for, Internet platforms, including message boards and streaming and social media sites.

Now, as the predominantly Black neighbourhood that suspected killer Payton Gendron targeted is left reeling, whether those platforms allow their users to promulgate the racist "great replacement theory" that appears to have motivated him has become a matter of public safety.