Duolingo's been hacked! Bot-Test!
What's happening... Kudos to the people that can save this!
The stupid bot itself managed to pile down votes on my original thread so that it's copy would be higher up the list. :-(
Every post I have followed in the past few hours is now -10. I hope DL finds a quick way of undoing this, as many legitimate posts have vanished.
Edit: threads go back to -10 even when I up-vote them, so these bots are still active, it seems.
Here is the profile for a Bot https://www.duolingo.com/prrutvpfbe