The add-on "Append text to post" already has predefined placeholders but they don't fulfill all our needs. We'd love to expand its features and available placeholders to be used.
Or if we had a place we could insert our own placeholders that could be amazing, then we could do several like this:
%greeting% - Good Day! or Hello! or Great to see you back again @ %blogtitle% in our %categoryname%!
%conclusion% - same idea as greeting
Basically, if we had a way to define our own spun content we could add unique introductions to every new post.