This idea was posted some while back, and a few did it, but each time someone brings the same topic up, we get a few more do it, I think its a good idea, it also helps when someone closer to you can see the fact they don't live to far from you and can sometimes offer a little more help.
I used to have my email address on here as well, but I have now hidden it, and the only reason for this, is the amount of spam I was getting, if anyone wants my email address, they only have to give me there's and I will send it, so I'm not hiding anything, just stopping the spam.