Most of the articles in unScripted were written before 2010. While many of them are still largely relevant, there have been numerous changes in Mac OS (now macOS!), AppleScript, and the example applications over the past decade. So be prepared for some details not to be accurate today.
Also, of course, apply due caution when clicking on any links in the articles — especially those leading to external sites. They may no longer link to the intended material!