This is wonderful.<p>Not sure if the submitter is the one who made this, but thank you for making it and/or submitting it.<p>These sort of code-as-art projects always make my day brighter :)
In case it's not clear: this tries to use the submitted password to log in to Google, FB, Twitter, GitHub, Reddit, and HN, and reject if it's re-used.
The XKCD that's linked to at the end there seems so woefully naive now (<a href="https://xkcd.com/792/" rel="nofollow">https://xkcd.com/792/</a>).