The plugin typically generates geometry as components or groups. This is essential for file hygiene in SketchUp. By keeping the window geometry isolated from the wall geometry, the user prevents "sticky geometry" issues, where moving a window inadvertently distorts the wall face.
Beyond the legal and security risks, consider the developers. Instant Door and Window was built by a small team of programmers who:
The end!
While the functionality of tools like Instant Door and Window is beneficial to workflow, the method of acquisition is a critical topic in professional practice.