mTwitch.DisplayName.mrc
Use's the display-name IRCv3 message tag when messages are received for purposes of displaying messages. That is, when a message is recieved the user's display-name* is used.
Currently, the nicklist stays unaltered. The only way to work around this would be to wait for a user to message a stream's channel and update the nicklist using the NICK change event. This would result in quite a bit of moderately useless spam for the sake of visual pleasantness on something that is very buggy on twitch. This is not something I'm, currently, willing to do
*: Spaces, Carriage Returns and Line Feeds are removed from the display name. If more invalidating characters are found, they will be removed in subsequent versions
Find a way to update the nicklist without spam.