Once upon a time, we had an add-on for our forum software that would automatically resize the uber-large images that some of our members like to attach to their posts.
Well, despite quite a bit of time spent trying to get this to work again, I had to give up. I could only get a newer version of the add-on since the original version we had is no longer available.
But... I have put another solution in place which should
fix this issue on most new, modern browsers. Hopefully, nearly all of you will now see images in posts that are automatically resized to fit the screen.
Sorry for the delay in getting this (mostly) resolved.