Yep, same here. But I don't want to store my photos in low-res, just for the sake of this forum. Knowing my luck, I'd accidentally leave it in low-res setting while taking a whole slew of more important photos.
This isn't the only forum still stuck at photo size limits of a decade past, but just as they increased file size limits from those commensurate with only 1 megapixel to 10 megapixel ten years ago, I suspect they'll be increasing to accommodate modern (50 megapixel) camera files, very soon. Better yet, have the server just compress the file to desired size upon uploading.