4 pane comic of dolan on the left and spooderman on the right
pane 1 (dolan): cum join opensurce cummunity!
pane 2 (spooderman): shure! how joyn?
pane 3 (dolan): Here discord! (with discord logo)
pane 4 (spooderman with tears in eyes): y u do dis?
This user is being extremely pedantic, I recently moved my discord server to a matrix instance and I promise you, it is not that hard. Download Element, make an account in the app, log in. It takes no longer than any other service.
Matrix isn't competing with the experience of setting up another account on a different platform, with email, username, passwords, recovery key, display theme, notifications settings, content warnings, etc..
It's competing with being able to click on a link to join a subgroup of a social network that people are already a part of and already signed into.