I can confirm too that Tag Garbage collector does not remove or fix references to the tag on pages. The only think it does is to remove old location of Tag after it was moved. It simply checks if tag from old location is still referenced on the pages, if not it removes that tag - that means the OOTB...

Hi,I have a question. Let assume my organization id is 123456789@AdobeOrg. However, during implementation of Visitor ID on the page (not using DTM/Launch), a JS responsible for getting the Visitor ID uses wrong orgId, e.g. 999999999@AdobeOrg. At first glance, looks like the analytics tracks the user...