By all means feel free just to chat in the guestbook - as long as it's not spam!
Anybody with Admin below their name is definitely me or a trusted person. I myself will always sign as Butterfree. If somebody signs under that name but does not have the Admin label, it is most likely an impostor.
Commenting on: 07-25-17
I don't know if anyone has asked this yet, but are you planning on making it so that the favorite picker can be limited by type? That would definately make the experience much more fun