I believe the parent is referring to how GNOME 3.0 had some really bad resizing grabs. Single-pixel widths at the edges, and almost impossible to hit corners.
Latter versions significantly improved it.
Has been a major issue for me with Xfce and Gnome over the years, mostly just switched window managers.
Has been a major issue for me with Xfce and Gnome over the years, mostly just switched window managers.