We check this website, now defenestrationism.net is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is defenestrationism Down Right Now? - NO! defenestrationism is up!
If you have problem with access to site defenestrationism, and domain defenestrationism.net is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).