Bud,
the "s" indicates "secure server" and overides trad gang's ability to automatically resize the image. removal of the s fixes that problem.
I also can, like you resize prior to upload but choose the BB Code link to post without having to resize.
LOL...I also gave up on my tablet and phone...for now...
I will repost the original image here for a bit to show the difference for anyone who may be interested. Soon we will not need to mess with this with any luck at all.