Lo dice más bien por el servidor, no por el cliente.
Respecto a sacrificar privacidad por comodidad los de @disroot lo expresan así:
"While the Matrix protocol is also taking the user's privacy seriously, it seems like its architectural focus is directed elsewhere, valuing usability over privacy" [1]
[1] - https://disroot.org/en/blog/matrix-closure
cc/ @colegota@gnusocial.villanos.net