I know my way to Commons which is substantiated by my contribution, and when I have smth to upload, I eventually upload and even sometimes write an article to include the picture, but I would not call it a systemic work. For me, an example of systemic activity would be the message on a designated page that the community YYY or a mosque ZZZ or a mountain WWW do not have any illustrations available on Commons, meeting a user who is going to travel to XXX or ZZZ or WWW but can not really look through all the Commons categories (when they exist anyway). At best this activity should be automated (even though I do not know how it can look like). Cheers Yaroslav