I have an app on my desktop (deepin-feedback) which I have been using to send feedback for some time.That seemed like a very good idea.

Now I find you have been wasting my time and expertise because the feedback page http://feedback.deepin.org/ is not functional.

Did it not occur to anyone in the team to update the deepin-feedback applet to actually TELL us that it was not functional?
That would have been a simple measure for someone to take, wouldn't it? Rather than expecting us to read your minds?

I am not pleased.
Please be more thoughtful in future.