Sometimes the criticism is actually useful and constructive and actually informs what I do, but most of the time, it's sort of mindless, or they're receiving something on a different frequency than I was sending it. They're just not getting what I'm doing, and that's fine.
I understand that computers, which I once believed to be but a hermaphrodite typewriter-cum-filing cabinet, offer the cyber literate increased ability to communicate. I do not think this is altogether a bad thing, however it may appear on the surface.