Yeah, I've heard that Hunters worldwide post information here.

All it takes is a single postcard or little note online...

There's the possibility that he mixed up the notes he wrote.

I was also posting on message boards, saying that what happened at Narita was awesome...

We fabricated a lot of member posts on message boards, too.

You previously wrote about her on a persocom site BBS, right?

Perhaps someone who read that post saw Miss Chi in town...

Oh, a reply is a post written in response to a post.

Come to think of it, I remember someone posted something like this before:

Could you please check, Mamoru?

Aye. I feared that was the case. From that last entry in Gallus's diary, it looks like he was getting close to exposing Mercer to the Guild.

Let's look at his notes.