Столлман просил передать участникам CC:

In the talk at Chaos Constructions, I forgot something important. I should have put out pieces of paper so people could write down their email addresses if they want to be on the FSF's announcement mailing list, which gets just a few messages per month.

Could you tell the organizers and ask them spread the word, trying to reach most of the people who came, to tell them they can subscribe at https://www.fsf.org/?