Why just to know remove the restriction of 10 chars and to use any chars you want! The network will give the error and the user will understand what to change, no? Is more easier to do, than to request from IRCv3 groups.
Remember that UnrealIRCd is technically limited to 10 characters in ident. At least as a network admin and we on our network using UnrealIRCd 5.0.1 know this.
