Two things we hear all the time from customers:
1. Scripting is used extensively and sometimes exclusively for managing production environments. In many shops, scripting is the primary interface to the WAS product.
2. Scripting is hard.
In WAS V6.1, we took a major step forward in improving the user experience for scripting by adding a Jython editor to the Application Server Toolkit, that provides the type of "code assist" that developers have come to expect in other languages.
I'm compelled to note that the script editor does not support Jacl. We're encouraging customers to move from Jacl to Jython, and this Jython editor is one way to encourage that movement.