Yes. What t (or is it Tim?) said. Exactly.

It falls in the "every little bit [of feedback and contact with the users' collective consciousness] helps." Or maybe it's really, "it couldn't hurt."

But take t's excellent list to heart, and do no harm: make sure it's clearly voluntary, don't get in their way, be sure you give them a reply, etc., etc.

And take whatever input you get with a big grain of salt. Don't panic when your site gets flamed. As t points out, replies are from a self-selected crowd.

On the other hand, be open to whatever you get, compare it to what you already know, and try to learn from it. Except for the time it takes to reply (which can be considerable), it's "free" input.

t: Thanks for saving me ten minutes out of my life.