Hi @quququbebebe. The official forum is not supposed to be a replacement. Instead it’s an additional venue of discussion.
The original forum announcement addresses these exact points.
To be clear, this is not a replacement for our mailing lists (such as qubes-users and qubes-devel), which will continue on as they are. This new forum is simply an additional place for discussion.
Many open-source projects (such as Fedora and Debian) have both mailing lists and forums (and additional discussion venues). In fact, Qubes already has non-mailing-list discussion venues such as IRC and Reddit. We believe that this additional venue will foster the continued growth of community participation and improve everyone’s experience. In addition, we fully expect that many community members – especially the most active ones – will choose to participate in both venues. (Again, for those who still prefer interacting via email, Discourse supports that too!)
I highly recommend you to read the full announcement
The key advantages of the forum is that:
- you can read the mailinglist here as well (but not reply)
- you can use the forum entirely via email