Facebook's warning against socially-engineered XSS is neat. It's a shame it's necessary though.
miniblog.
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How do you tell if a computer game is being played by a human or a computer?
Trackmania allows you to replay every keystroke. Enthusiasts have reverse engineered the game and measured what the fastest possible inputs are possible by hand!
The more words an open source tool devotes to the alternatives, the better engineered it tends to be IME. From Uber's article about their method profiler:

