Hi... if you do a whois to a user who is in a channel whose name finishes with a bracket ) ] or { and you double-click on the channel, you'll join a new channel whose name has not the bracket in the end... For example:
MrX stays in a channel called #brackets)
I do a whois to him, the raw 319 lists the channels, I double-click on #brackets) but I join the channel #brackets
sorry if my english is incorrect, but I'm italian
Bye
Dracoo