this does not only apply to the WebChat but also to Spark but I prefer to post it here as you are using the WebChat for the weekly chat:
I’'d love to see options like
"/me " to express something like “/me feels ill”.
“/q” to quit the chat.
"/aq " to ask a question, so others may read the chatlog very easy (unless this option is not abused).
"/msg nick " for private messages
"/nick " to change the nickname.
There are some more command line options I’'d love to see but I know that if I ask this for Spark you offer me the great opportunity to write a SparkPlug (:
edited: http://www.jabber.org/jeps/jep-0045.html#impl-client-irc (not exactly what I want to see)