I finally got around to using the mobile forums on my iPhone (mobile.macrumors.com) and noticed the forums seem out of sync. It looks like there are a few more forums on the mobile version (although the last posts are pretty old). I'm assuming those are depreciated forums but a few people have posted there (https://forums.macrumors.com/forums/76/) from their mobile devices. That forum and then the "Archive" grouping...
These forums exist on the mobile version but not readily on the normal version.
These forums exist on the mobile version but not readily on the normal version.