Adds a user to the IRCPlugin's IRCPluginState.users array, potentially including their services account name.
Servers with the (enabled) capability extended-join will include the account name of whoever joins in the event string. If it's there, catch the user into the user array so we don't have to WHOIS them later.
Adds a user to the IRCPlugin's IRCPluginState.users array, potentially including their services account name.
Servers with the (enabled) capability extended-join will include the account name of whoever joins in the event string. If it's there, catch the user into the user array so we don't have to WHOIS them later.