Yeah, this and many other talk pages were recently migrated by me as part of my job to enable the StructuredDiscussions (Flow) extension on the namespaces, as previously they didn't feature these proper talk pages and instead had a basic wikitext page that needed manually editing etc.
This particular topic from Kaede is from, as far as I can see, from May 11 2020, hence why they do not reply. They'd probably not even get notified of these replies unless they actively visit the wiki and check their watchlist as they aren't "subbed" to this topic since it was first created as part of my migration.
As far as the system reqs, those should be up-to-date as I remember that GOG recently (within the last few years) removed support for Windows 7, which received a somewhat negative response by some of the community, so the support page does line up with that.
Though yes, the whole system req tables aren't necessary — two bullets below the system requirement header detailing the same the support page details is enough.