Which they're also not trying to do. It's just a cool project, shared for those that want to use it.
The hostility displayed towards an open source project in this submission is completely excessive just because it doesn't meet the requirements of many/most users. I'd feel awful if I were the creator of it and read the comments here, which are being extremely harsh about what is otherwise a very nice little project.
Personally I find it very useful, but I'm the type of person who would.