So @totoy shared https://github.com/libremonde-org/paper-research-privacy-matrix.org/ with me. It's interesting, some things I expected, some others were a surprise. Was there any response from @matrix?
@xiu @totoy yes. https://matrix.org/blog/2019/09/27/privacy-improvements-in-synapse-1-4-and-riot-1-4. that research is several years old; bits of it were legitimate at the time (and got fixed); others less so. Strangely the paper never got updated afterwards.
Le réseau social du BIM, fruit de la collaboration de 3 associations promouvant les Logiciels Libres et la Neutralité du net