While the community is often what is providing the information, one person or group is the one creating and distributing the Discord server. You can't have an entire community create a Discord server; one person has to do that, and it's most often the project maintainers. I was saying that the people creating the Discord servers should also create Matrix spaces and bridge the two together.
Hmm, interesting. I mean, I personally do not engage in specific projects. In my case, I did not find e.g. large enough mathematics server and PL community server in Matrix. This made me rarely visit matrix..