Pen Pal?

So I was goofing of at the office (the Doc is skiing) when I came across this article. Of course I had to check out the site mentioned just to be nosy. While I understand that these guys are lonely and want a pen pal (well in this case more like the x-rated version) my question is would you really want them to have your address????? I mean what if they get out - you can write the most beautiful poem and still be some psychopath. Na I think I stick to sending funny cards to our troops overseas. They tend not to write back but at least the chance of some lunatic showing up at my door are slimmer.
The other odd thing is the article is from Bangkok but the guys are in prison here???????