It still wouldn't be a bug.If I were a bad boy I could have spammed that widget easily... that's why I consider it as a bug.
Regardless, I don't see any way this could be "fixed." If all your messages had been to Jake Bunce on his profile, for example, there could have been something like "Super120 posted five messages on your Jake Bunce's profile. View All," but they weren't, and even if they had all been to him, it doesn't work that way, anyway.
This. The only difference now is that they are more easily visible.There's nothing to stop people from doing that right now in pre 1.4 versions. There's nothing to stop, for example, similar activity showing on the News Feed or Recent Activity. I really don't see why special measures should be put in place now.