On the main photo.stackexchange.com page, I see a list of Top Questions, ordered by activity. Today, I noticed a question in the list that I answered back in 2018:
The question is marked in the list as: "modified 19 hours ago marg 1"
However, when I go into the question itself, I see no recent activity. Also, this user "marg" seems to have no actions listed in their activity in their user profile.
So, what's going on? What activity did marg perform today on that question?
Additionally, I have a notification that I've lost 2 reputation points coming from that question. I suppose it means my answer there was downvoted? So, is it correct to assume then that marg (with no great participation on the site, and a rep of 1) came along and downvoted my answer, and by virtue of that, the question appears as active on the homepage? Sorry to "out" marg with regard to downvotes, I'm just trying to understand.