mindcrack is a server that lots of youtubers play on including:
Paulsoresjr, Etho, Guude, Pauseunpause, GinerikB, And Many More!
Both the mindcrack and mindcrack fan servers are white-listed servers. currently mindcrack is only sending private invitations to a select few and the mindcrack fan server's residents are holding separate contests to join.
Guude BoulderFist
On the MindCrack Subreddit, underneath the subscribe button, which says show your flair above your name. Click edit next to your name and you will be able to choose a team. #TeamVintageBeef