Dumb question, what is /x/ ?
Here you are:
"/x/ - Paranormal" is 4chan's imageboard for the discussion of paranormal, spooky pictures and conspiracy theories.
Just in case you are not already familiar with 4chan, here is a précis of the site: 4chan makes BellGab look as though it is frequented exclusively by Oxford dons.
(Sit back and think about that for a moment.)
If you believe I am kidding, grab a high-capacity sick bag and click here: https://boards.4chan.org/x/
However, be forewarned: 4chan is the Internet equivalent of a stadium-sized kiddie pool filled with noisy, incontinent, and (sometimes) disturbingly clever children*, so don't say you weren't told.
*Though admittedly, the site is nowhere near
as raucous as it once was.