In my case it did say which post was liked -- and it was a plausible one for someone to have come across randomly on the Internet (my in-depth review of the live-action "Beauty and the Beast"). I just can't see any mechanism for displaying or registering 'likes', although that may be because I'm not logged in!

Could you toast the remaining bread, grate it and keep the breadcrumbs for later use?
Good idea; I don't have much left (I put a roll and a half into the plum duff, and jolly tasty the result was too), but I've stuck the remaining half-roll into a low oven to dry out.
I usually just use wholemeal flour when a recipe wants dried breadcrumbs, but it isn't quite the same.