So I recently found out that some leeches cannot be removed except for when they are burned, so I decided to add a little to the existing Leech List script by @ukebox so that you can find out if you can ever remove a leech without burning it. It also adds information about the amount of times you got something wrong, and the your current correct-answer-streak. I also changed the sorting algorithm so that it prioritizes the amount of mistakes you have made, if people want to go back to sorting the leech score I will create a script that does that instead.
Simply add the script by replacing the existing code of Leech List with the code in the link. I hope @ukebox is ok with this, but I thought it would be nice to share it with people that could use it as well.
I am not yet able to count the amount of impossible items with the script, but if I copy paste the whole leech list page into Word and search for 不可能, I have found that I have 160 permanent burn-only leeches, which is pretty good to know. 