I was thinking the same thing. As long as it's nothing we wouldn't mind being read by someone at the Ministry. And it's not like I'll be writing personal messages to the twins or something when this will do just fine, but it would be weird if we didn't take full advantage.

And this way, if we do it enough, it won't seem too dodgy when Ron and Neville know something they wouldn't have otherwise, so it'll be easier to hide this.

It's awful interesting they're only letting us write two people at a time, though.