SUPERAntiSpyware

Hi, Sorry for the total n00b question! (Apologies if this is the wrong place to ask.) We've been an Invision Community user for many years and in fact feature it somewhat prominently on our site but don't actively manage or police it. We have never gone beyond casual customization and pretty much just use it as-is without ever having explored the features. Can you tell me the best way (through plugins or other means) to automatically and permanently delete old content, inactive users, etc.? I am not really interested in just archiving content if it still remains visible on the site. We've got to purge older content soon in a sensible way or we'll be forced to decommission our forum. Thanks for any guidance you all can provide!