Marshall - 12:37 pm on Jan 4, 2012 (gmt 0)
If I were smart, I would think there is a business opportunity in there somewhere.
Maybe an online clearinghouse for responding to non-customer emails.
Back to the original OP...
In the end, I guess the response to a non-customer depends on a business owner's personality. I know my client will continue to help people and enjoys doing so. I have to admit, at times I think she's a little idealistic, but I'm only the webmaster who occasional manages her online sales.
Thanks everyone for your responses.