I wouldn't actually say it's a terrible idea, for 99% of users it should work better, faster, and easier for them, since -very- few people have the same habits as you.

However, having said that, I do otherwise agree with you, I also don't want to give my email out to all of them, and when I do, it may be one of a few address, depending on how much I trust them, or care about the responses. I'm given very little option in that regard.