It's come to the attention of people on Tumblr, that there are multiple sites taking whole Tumblr blogs and reuploading them to their own sites. This includes peoples artwork, writing, videos, literally everything someone posts to their blog is being reuploaded to different sites. Even private information that should only be visible to the blog owner is visible for anyone to see. 
Content creators and everyone else that uses Tumblr is at risk with these other websites (Tumgir and Tumbex). 

My hopes are if this gets enough signatures, Tumblr might actually listen to us and do something about this.#

These rip-off websites that are using everyone's blogs are also full of malware and viruses, which can end up with someones sensitive information being stolen. As explained by another Tumblr user, along with this mass cloning, they are using it to catch Google search traffic instead of Tumblr and get ad revenue from the misdirected traffic. So not only are they mass reuploading content onto malicious sites, but they're also making money from it. 

With Tumblr, we don't even have an option to block our blogs coming up in search engines without them also being blocked within Tumblr, rendering nobody being able to search for your blog on the host site. 

These websites are seriously alarming since they can do a lot of damage, as well as profiting off of bloggers and content creators on Tumblr. 
We want to see a change in this, nobody wants their work, posts, etc, uploaded onto an unsafe site and we want action to be taken against this.