And you are exactly right.

One guy, from Korea gave use very high quality patches for OS/2 that did not break other platforms and were easy to maintain.

On what ground could we refuse them?

I just thought there's some secret OS/2 using club (outside of legacy industrial machines :))

There totally are. People still use OS/2 because they think it's the best desktop OS ever created, they are tiny in numbers but are more than capable of serving themselves' needs.

http://www.ecomstation.com/ - they even have this.