To be clear, I intellectually understand the 'actions' drop-down because I read about it in the announcement post. Thus, I was educated or I learned about it.
From the perspective of a new user it isn't entirely clear what is going on in my opinion. For the most part, it should be clear to most users what is meant by 'bookmark'. On the other hand, it isn't apparent what is meant by 'ignore'.
Even though I've been educated (somewhat since this may functionally change) I'm still fearful, unsure, or hesitant to click on it.