My preference is for you to include it as a link, or to modify it to include the line "reproduced with permission from ..."

Concerning chemical rocket articles, we do have a single thread that discusses liquid vs. solid fuel rockets. Most space probes are launched by chemical rockets, but the articles about these probes are not about the chemicals or their current advantages over some other means of propulsion. Likewise we try to maintain single threads about solar sails, ion drives, and other means of propulsion. The exception is that news stories get their comments in their own threads, so when Cosmos One was being launched, it had its own threads.

Concerning reading only the tail of a thread, I suspect you are like most people in this, so we would add your messages to the tail, where they will be seen, and where they will move that thread to near the top of the most recently updated threads.

Concerning signing in triplicate and stamping, that sounds like gentle mocking for me needing to make sure the rules are followed. I'm sure you meant well, but I'd prefer to be allowed to just do what I have to do without such barbs.