The post was deleted, but it implied that all software closes TCP with a FIN. Some software sends a RST, no FIN.
The issue is that the answer is relative. There are no absolutes. So yes, it does depend and yes there is always an explanation as to why it depends. Just because something works this way on this system does not mean it works the same way on that one.
To believe that something is the same everywhere on every system for every user is foolish at best and reckless at worst. And, people who think that (typically non-technologists) think that they have the answer as well... let's rewrite it to be the same everywhere. This is when all the engineers dust off their resumes and bail.
The issue is that the answer is relative. There are no absolutes. So yes, it does depend and yes there is always an explanation as to why it depends. Just because something works this way on this system does not mean it works the same way on that one.
To believe that something is the same everywhere on every system for every user is foolish at best and reckless at worst. And, people who think that (typically non-technologists) think that they have the answer as well... let's rewrite it to be the same everywhere. This is when all the engineers dust off their resumes and bail.