They've tried to make it better and failed.

So, apparently Tumblr's staff have tried to fix Safe Mode. This hasn't worked, and if you've been on Tumblr today you'll have noticed that it doesn't work still. They've tried to sugar coat it to make up for such a horrible update at such a horrible time. We are not okay with this. Keep reblogging all of the posts about this petition, keep boosting it, tell every single person you know. Boost it on r/tumblr, if that's a thing, boost it on twitter, on facebook, irl, EVERYWHERE.