Gary,
If I understand your complaint it is that when you try to post pictures from your PhotoBucket account the thread then contains a link address as opposed to showing the image in the thread, the same way that Mark's posts do from another photo server that he uses, which you find annoying. When I asked for help with PhotoBucket some time back, Flipper_1938 provided this concise direction:
When you wave your mouse over the thumbnail of the desired pic in your photobucket album. a box will appear for sharing an image. Click on the last sub-box that says " IMG Code". it will copy the link to that pic.

On here, right mouse click and select paste. The photobucket link should appear.

Club Hot Rod will let you paste 35 picture links in a single post.
Hope this helps, and that I did not mis-understand your problem.