Under 'Contact' methods on your profile settings, there's fields likes:
and some other ones.
I know AIM and MSN don't even exist anymore, and GameGavel doesn't even seem to be a thing either at the moment.
I'm not sure on the others. I know ICQ is still around. Not sure on Yahoo. Skype still exists, etc.
But why not get rid of those three, and add maybe 'Discord', a popular messenger that I moved to from AIM.
Just a suggestion!