Another down side: there is no way to list these multipass communities. The parsing would be one-way without any error reporting. It would take extra work to establish an account that speaks for the code running so it could comment with errors or time it processed, etc. My goal is to not do more coding or install than I have to… and creating a convention for a background lemmy_server creating messages to a posting is a whole new can of worms.

Of course, people could view the featured message in the community to see what the list is - but they could make a mistake or the parser have problems getting the list from the posting… and that could lead to hidden issues. And it wouldn’t do things beyond scope, such as add a community to a multipass list if the local server does not know of that (remote) community. Again, without any kind of feedback about errors/problems like that - people using the feature would have to deduce these issues with human thinking.