Understood. The question was , " How to post from other than YOUR Photobucket."? Perhaps saving time and effort and loading YOUR computer with photos you have little or no interest other than to make a post more interesting or understandable in a thread.
Second point, I have pictures mysteriously disappear from my threads / posts that were posted using the above prescribed method from my Photobucket. Posted properly, they do appear, (for awhile) only to disappear later.