* Block List
If you're using the up to date official version:
Using the UI:
1. Click on the ▼ located in the top right bar that says your name, level, coins, etc.
2. Click on Dan's Userscript.
3. Find the Block List row. Click on the "View" button.
Using your browser's console: type localStorage.Players;
Edit: Here's a picture that might help you out:
Edited 6/17/2017 17:20:43