Everything typed in krunner is logged. This quickly escalates and does not yield any useful information. It's literally spam. Reproducible: Always Steps to Reproduce: 1. journalctl -f 2. Alt + F2 3. Start typing Actual Results: Krunner is logging like crazy. Expected Results: Don't log at all if not debug compiled.
You might have your logging categories misconfigured. You can check out kdebugsettings for a intuitive graphical tool :-).