erc-noncommands-list

erc-noncommands-list is a variable defined in `erc-goodies.el'.
Its value is

(erc-cmd-ME erc-cmd-COUNTRY erc-cmd-SV erc-cmd-SM erc-cmd-SMV erc-cmd-LASTLOG)

Documentation:
List of commands that are aliases for CTCP ACTION or for ERC messages.

If a command's function symbol is in this list, the typed command
does not appear in the ERC buffer after the user presses ENTER.