Some of the add-ons available for xenforo are super; some you install and find that they don't meet your purposes. Regardless of suitability, though, every time I install or uninstall an add-on, I hold my breath a little bit, hoping that the process won't blow up my forum. The questions: Is it possible for the forum to become inoperable as a result of installing or uninstalling an add-on? Is xenforo somehow protected from the code of add-ons? Can I breathe freely when installing or uninstalling? Thanks.