Discourse notes are recorded in github/sysadmin.
If the topic is a wiki, and the user read it all, it will always go to the top.
Otherwise there are no ways to accomplish what you need as it would mean a worse user experience. Can you share more details about why do you need this change?
https://meta.discourse.org/t/navigate-to-top-of-topic/160676
use <br> to make a blank post.
This is an enormous title
You can use unicode to format titles. For instance, italic.