I don't think that's at all fair. If he hasn't communicated with you, it's because you haven't communicated with him!
Our rep is there to present to Management the views of any pilots who would prefer not to stick their heads above the parapet. So if you want to complain about sector pay anonymously, send him an email and he will forward it without your name on.
If we all send him an email, ID will get the message without being able to shoot at anyone in particular. Could be useful - unless of course he decides to shoot the messenger.