I've never used a photo hosting site on here, and have always just posted photos as attachments. Recently, it seems like the photos that display when you click on the thumbnails are a lot smaller than they used to be. Ordinarily when I post a photo I resize it so it's around 75KB, and about 640x480. Those sizes and resolution were adequate to display a decent sized picture in the past, but now they're really tiny. Has something within the site changed? Should I be resizing the photos to a different size than the one I've been using?