I'm also trialling a new command on VCV for non-irc chat. If it works out well, I'll put it on VC too in a few days.
It's exactly like /l, except it'll show to everyone online rather than just those around you, and it'll look exactly like a normal message. The only difference between it and a regular chat message is it won't be seen on IRC. People might want that, especially when talking between servers, so I tried it.
Syntax: /p This is a message that won't be shown on IRC
Display: [P] <luisc99> This is a message that won't be shown on IRC
(Formatting may change)