It is an example because i think a lot of people on Hacker News know about macOS and its advanced features that you wouldn't expect most people to know about.

It is an example because i think a lot of people on Hacker News know about macOS and its advanced features that you wouldn't expect most people to know about. Personally i do not even really use macOS myself anymore as a main OS since around 2011 and the last Mac i bought was in 2012 (a Mac Mini that i gave away to my mother a few years ago so the only Mac i have around is a 2009 iMac - and whatever is the last version of macOS that runs on it). I could use OLE and COM automation on Windows as a different example, though i'm not sure if even Microsoft cares about those anymore despite allowing for things you can't get in lowest-common-denominator multiplatform applications.