Daniel Kansaon, Philipe Melo, and Fabrício Benevenuto. 2022. “Click Here to Join”: A Large-Scale Analysis of Topics Discussed by Brazilian Public Groups on WhatsApp. In Proceedings of the 28th Brazilian Symposium on Multimedia and the Web, novembro 07, 2022, Curitiba, Brasil. SBC, Porto Alegre, Brasil, 57-67.