Name says it all. What's your favorite creepypasta that you would classify as Lovecraftian or Cosmic Horror other then Slender Man, The Rake or The SCP Foundation?
The two that stick out to me are The Pill,http://creepypasta.wikia.com/wiki/The_Pill() and The Puppet Master's Regime series(starting here: http://creepypasta.wikia.com/wiki/The_Puppetmaster's_Regime ).
'Look Between X And Y On Your Keyboard' Becomes Viral Phrasal Template Meme On Twitter (X) And Reddit