I've got irssi-plugin-xmpp version 0.52+git20140102-3
In text-based chat, I'm in the habit of saying things like this during
a conversation:
/me looks in his notes.
In IRC, most clients render it as something like "* dkg looks in his notes"
An XMPP correspondent (with whom i use OTR exclusively) just let me
know that her client just told her it shows up like this:
The following message was not encrypted:
/me looks in his notes.
So something about the interaction between the irssi xmpp plugin and
the irssi otr plugin makes it so this common "/me" use pattern is
leaks information that one would expect to be encrypted.