Hope Not Hate’s recommendations for Zoom security

This is a helpful list issued by Hope Not Hate in response to racist zoom bombings:

turning off the chat function for participants

setting the screen-sharing facility to “host only”

using a moderator who does not take part in the conversation but can block people quickly

using the app’s Webinar function so only the panel can talk or show videos

close sign-ups 12-24 hours before the event

https://www.bbc.co.uk/news/technology-56100079

It distresses me how easily this can be explained in the terms of 00s cyberutopianism. Does Zoom somehow encourage racist attacks? Or does it simply lower the transaction costs sufficiently that scores of racists not quite motivated enough to attack physical events are now willing to do so.