I wouldn't bother emailing the webmaster, you'd just have him laughing at you with his brainless hunting buddies.

What you should do, is email the sites HOST. Do a whois search on their domain and then email the hosting company (if no one knows how to do this I can do it and post the email address) and explain how much this disturbs you to see and blah blah... I did this to a site before and was sucessful in getting it kicked off actually.

I'll be honest, I didn't even have the strength to click the above link, I just can't take seeing those things... Makes me feel so awful.