Try the link again. It’s the proper way to link to communities using Lemmy.
I’ll try the link, and if it works, it works. If it doesn’t, I move on. It’s not my job to try to make it work, it’s supposed to “just work”.
Your link doesn’t give people on other instances the easy option to subscribe to the community.
I’m aware, I was just trying to give a pointer to the forum (assuming the link doesn’t work for others as well), so people can manually subscribe if they wanted to, as a community service.