Well, I have various difficulties finding things in G2G feeds, but none of the feeds I see shows the same question repeatedly.
In some of the feeds, items pop up again whenever there is a new answer or a new comment in response to the question (but not when there is a new comment in response to one of the answers). I think that is the behavior Ros is referring to, and it is not new -- it has been that way a very long time.
There are several ways to access G2G content where I can only see the last 50 questions, regardless of whether or when anyone answered. And the recent activity view on my G2G profile is not very helpful for me because I can only see 50 items, most of which are typically Moderator activity, such as retagging a question from another member.