I keep an old copy of the SeaMonkey browser suite around just to set up the code for putting a picture in a post.
Honestly... Modern scripts do not require any extra effort or tools like this. They respect how you laid it out in your draft very accurately and post it respectively But I can’t blame this script yet... It could be my stuff not interacting with it correctly. But it is the first time I have run across this issue in a long time.