gistfile1.el

; Hide certain messages from channel tracking
(setq erc-track-exclude-types '("JOIN" "NICK" "PART" "QUIT" "MODE"))

; Hide these messages from all buffers
(setq erc-hide-list '("JOIN" "PART" "QUIT"))

(defun set-empty-hide-list-eggsml ()
  (if (equal "#eggsml" (buffer-name))
      (set (make-local-variable 'erc-hide-list) '())))

; Avoid hiding anything in #eggsml
(add-hook 'erc-join-hook 'set-empty-hide-list-eggsml)