Seems weird to be in a terminal window, type `kill`, open a graphical app, find the PID, remember the PID, go back to your terminal window, manually type in the PID, and then hit Return.

If you're already in the terminal, you should use `ps -e | grep <thing>` or some other method to find the PID. If you want to use a graphical app like System Monitor, you don't need to use a terminal at all; just click on the process and click "End Process" in the toolbar.

I'll be honest with you, I'm not going to remember the `ps -e | grep <thing>' unless I had to use it daily. Finding stuff through the UI is much more intuitive, especially having the foreknowledge of Windows. That's why I would open the System Monitor to look for the PID.

The reason that I would have to use the terminal is that there are times when the "End Process" or "Send Signal -> Kill" does not work in System Monitor and you have to revert to the terminal to shut it down. 

Again, I'm just describing my experience coming from Windows. If the column was made default it would have saved time searching how to shut down the process. Also it seems pretty relevant to the 'Processes' page to list the process ID.

> The reason that I would have to use the terminal is that there are times when the "End Process"
> or "Send Signal -> Kill" does not work in System Monitor and you have to revert to the terminal to
> shut it down. 
Aha, the truth comes out! :)

I find that people often request things like this to work around bugs. But really, we should fix the bugs instead!

Since this bug report is already a bit cluttered with the discussion of other things, could you file a new one about the those features not working with 100% reliability?

I got ya. I'll hold off on submitting the bug until I run into it again. Still though, process page... should list the PID, it makes sense.