Not everyone even has Tumblr Savior. I can't get it to work on my laptop, no matter how hard I try, and how many people try to troubleshoot it for me. It won't work. Plus, from what I've seen on my dash, every time Tumblr upgrades or changes something, Tumblr Savior stops working for a while. Assuming that everyone can/does use something that's not an actual part of the site is disingenuous.