If you're using Scott Watermasysk's .Text blog, please be advised to ban IP 66.235.202.61 from your .Text blog.
I've just received a feedback for all of my entries, the feedback contains the entire text “interesting post”, with a link back to his website. What an unscrupulous fellow!
And I've just posted a feedback on Scott's blog asking him to consider implementation of some feature to prevent this.
In 2017, with the release of Delphi 10.2 Tokyo, Embarcadero introduced a specialized implementation of the Observer pattern into the System.Classes unit. While it has been in the wild for 9 years, it remains a "hidden" architecture for many, primarily because it serves as the invisible engine behind LiveBindings. Other than live bindings, you can also use the Observer pattern as a way to update component settings to the Windows registry, an .ini file, or persist it elsewhere.
System.Classes