Does anyone know. . .

[MrsJodikins]

In my league forum, a link was posted to a rapping bunny site. However, at random times, when the link is clicked, it redirected to a porn site. Listed below, click at your own risk

http://bordergatewayprotocol.net/jon/humor/web_animations/rapeasterbunny.swf

Is this site related or user related? If it's user related, what causes this and how do we fix?

Thanks!