In that case I wanted to just make the original information up-to-date without “pushing up” the topic - because nothing of substance in regards to the topic itself has changed, only minor details like command line options.
It is common pattern in forums to have first post of the thread which contain some links or important info to be updated, as old links might be broken or the info might be out of date.
Giving such updates at the end of the thread and leaving outdated info in the first message means more people will get old info, because not everyone will go to the last messages to check, and that “update” messages might be buried under other replies and will be somewhere in the middle of the thread, where finding them will require even more effort