
The visual difference between a medium quality and a high quality saved image is undetectable without close pixel-by-pixel inspection, but the file size difference is substantial. Ron typically saves his images at 1000px wide, but the size is only 50-70k, on average. (And if you've seen Ron's photos, you know they're not lacking in quality.) But I see a lot of smaller photos posted by people where the size is upwards of 200k per image. For threads with a lot of photos, this can start to take a good deal of time for those with less-than-optimal connection speeds.
Thanks for your help.