> It is a dialog.

It's as much of a dialog as they allow for people to express their views. If I write a politician a well reasoned, thorough explanation of why I support or oppose something, the best outcome I get, as a non-lobbyist, is having a "for" or "against" viewpoint tallied into a giant bucket.

So if elected reps are going to distill our "dialog" down to an aggregated tally of support or opposition, then a canned email covers the entire dialog that's allowed.