Currently in XEP-0045, roomnicks are case-sensitive. To be precise
roomnicks are handled according to the Resourceprep profile of stringprep:
http://www.xmpp.org/extensions/xep-0045.html#bizrules-jids
This means that the following roomnicks are all different:
StPeter
stpeter
STPETER
Some people have pointed out that this can be confusing to end users.
Not only this, but it's very easy to "steal" someone's identity when
they are not there. You just log in with their normal nick.
At Chesspark we make all public rooms non-anonymous and we always show
the full jid or (if they are in your roster) the roster nick for that
person. That way no one is ever confused who is who. So we've
basically solved this in the client. All this nick stuff stuff is so
IRCish anyway. It's nice if what you want is an anonymous room, but
for everything else, it's just a mess IMO.
After trying several solutions we found that this was least confusing
to everyone and we have gotten no complaints except for the occasional
jerk that signs up with a name like st.peter or stpeter_, but there's
little you can do about that but ban the offenders.
jack.
