Basically the title
1 - The Rails guides seem outdated, and it may seem trivial, but for a lot of beginners it simply makes an impression like an abandoned framework, the main page was recently updated, so the rails guides would also benefit from a small refresh.
2 - Another issue is that separating hotwire forum from rails forum might cause fragmentation and not the greatest engagement from the community? What do you think?
3 - There is an extremely popular page and github repo with developer roadmaps
Can you spot which framework or ecosystem is not even discussed there?
Once again in my humble opinion Rails team should aim at improving its marketing, bring back the coolness so to speak 
The current upgrades are extremely exciting, but people in general have no idea about them because the popular resources, like the roadmap above, do not even mention them.