When comparing two directories with kdiff3, I always get an info pop-up telling me how the comparison went. I'd rather just look for myself, but the dialog box is in my way. I've attached a patch to move this information to the status bar, where it can be examined or ignored.
See also Ali Lakhia's patch for some other info pop-ups: https://sourceforge.net/tracker/?func=detail&aid=2908342&group_id=58666&atid=488551
Patch to avoid dialog box for directory comparison summary