Her you go Rich, it chops it down to 999 pixels.
It's not often necessary to post large images, and I do my best not to if it's not needed. However, if you take a shot of a detailed item like a locomotive, you frequently want to zoom in and see detailing that you can't see at 1,000 pixels maximum size.
However, it is what it is, it's not a big deal, just something that used to work differently. My memory may have been to before the forum go the major software upgrade, I don't often have occasion to need that level of detail.