Currently, Colloquy pops up an information window when you do a /whois <nickname>.
It would be very nice if this could also handle /whowas <nickname> requests, as these are currently just swallowed (or rather, they show up in the Console, but most people don't have that visible).
For reference:
WHOWAS looks like this:
whowas nickname
314: nickname n=nickname pha00108.dhcp.unc.edu * Nick Name
312: dray irc.freenode.net Wed Mar 14 22:26:25 2007
369: dray End of WHOWAS
WHOIS looks like this:
311: nickname n=nickname 64.65.176.46 * Nick Name
319: nickname @#plone
312: nickname irc.freenode.net http://freenode.net/
320: nickname is identified to services
318: nickname End of /WHOIS list.
