More useful would be a proper way to discover when certain content was added, altered or removed. English Wikipedia has a feature "Revision history search" which links to an unfortunately-named widget called "WikiBlame". This could potentially be very useful, but unfortunately it seems to have been written by and for techies, and the user interface is virtually incomprehensible for the ordinary user. It is also very slow.
Topic on Extension talk:RevisionSlider
This is a separate feature that came up in different community wishlist surveys in the English as well as German Wikipedia community. The Phabricator card T2639 collects most of the discussions that already went into this. The wish is currently marked as "can not be realized for technical reasons" in the German Wishlist.