If i can disable it, how do i do so?
I don't use the default terminal on OS X, instead, i use iTerm. It's annoying seeing everytime that default one.

If you get annoyed by this, you can make app package yourselve.
There’s also an easier way. Simply make Automator task for starting 4coder for you. This gets rid of terminal window since Automator is now process owner. You can save this to an .app and start it via spotlight. Minor con of this solution is that instead of terminal window, now you’ll have small icon in the top bar during lifetime of this task.
Hope this helps.