While high resolution images are nice for archival purposes, beyond a certain resolution they become impractical to view and time consuming to download.
Danbooru will automatically resize any image larger than sample_width ?>xsample_height ?> to a more manageable size, in addition to the thumbnail. It will also store the original, unresized image.
force_image_samples): ?>You can toggle this behavior by changing the Show Image Samples setting in your linkTo("user settings", "user#edit") ?>.