Abusing tumblr to spread malware

A friend kindly shared this link with me http://gta5updates.tumblr.com/,
then after that we go to http://tumblr.comlu.com/...

and pie, there is a java applet


Pretty fun to see that tumblr can be abused like that, i have never seen it before...
How ever for reporting a tumblr a mail is fine (that nice)
http://tumblring.net/how-to-report-people-on-tumblr-for-abuse/