The "IM screen names" section on the user profile page still contains a field for "MSN Messenger screen name". MSN Messenger has been replaced by Skype in April 2013. Time to remove this field here on the Lithium Community ... and probably also in the core Lithium platform.
Hi @Claudius thanks for pointing this out! I've flagged this internally regarding a core change and we'll work on getting this updated on the community. I'll let you know as soon as I have more information.