I have a scenario, we have a web application where multiple site collections are hosted. among which there are 3 site collections... sub sites within each site collection which are critical for users to upload docs in libraries. Like wise users are uploading docs in other site collection libraries as well.
now each user is tagging the documents from different site collections as per their convenience. May be there are multiple users tagging the same document. we have a issue like since many users have started tagging their documents, it is utilizing lot of storage and in near future the utilize all the resource.
So, my question is, is there a way to retrieve or download the 'system tags' according to the site collections / documents and also which user has tagged which document? so that we can delete all the unnecessary tags from non-critical site collections.