It’s deliberate, the same with the camera specific forums such as the R5 forum. The new monthly images thread and weekly threads are mirrored into the gallery as are all of the niche forums. It’s done like that to help categorise the images. It’s not possible to categorise the images posted into the none niche forums unfortunately. Also the open forum and camera specific forums are more focussed on discussion and questions, so there aren’t so many images being posted anyway.