I would like to see more critique here, so long as it's of the constructive kind. It helps to make us better photographers. But I don't always have the time to say more than a few words, and it isn't always clear if it'd be appreciated.
I find the opposite problem harder to deal with. Quite often I see praise of snapshots that anyone with any camera could do. I don't think that's too helpful. Or maybe others have lower standards.
In any case it tends to devalue all such correspondence. So when one of my shots gets a positive remark I have to wonder if the person replying isn't just being polite for the sake of it. Not to be too negative though... I am happy to get comments.