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.
No, there's no bonus. The game program is just comparing the species number of the two Pokémon.
Commenting on: 07-24-10
I love the work you've done on the capture mechanics page, but I have one question about Love Balls. You say the bonus only works for opposite gender and same species. Well, what about Pokemon that only have one gender, but opposite-gender counterparts? The Nidorans, Wormadam and Mothim, etc. My guess is that there's no bonus in those cases, but it's worth asking.