Yes, I can see your dilemma. There IS no way of knowing with this set up ... Just another function not thought through properly...
I find the flurry of 'star' notifications is distracting so that I miss other more important messages (bipdays, favs) . After all, stars can be awarded as many times a day as you like. Even people who are not members seem to be able to award them now, so, while they're appreciated, they're not exactly STOP PRESS. I don't know how people who get dozens of stars each time can keep track...