Would you consider adding an option not to confirm killing or terminating a process. Since to do so the user needs to select the process and access the c-menu, killing/terminating at random shouldn't happen easily. For some users this may be handy. WHat do you think?
Yes, added to the list of things to do http://wiki.xfce.org/roadmaps/taskmgr
Committed into git 39e08f.