[Xardir]

Do you mean something like this?

/script print(GetIgnoreName(GetSelectedIgnore()));

If you are able to copy text out of the chatbox, you can use this script. Just select a player on your ignorelist and use this script.

EDIT:
i wrote a very short addon:

1. Select ignored player
2. Type "/igname get" or "/ign get"
3. Select the name in the EditBox and copy it with Ctrl + C



main.lua

SLASH_IGNAME1, SLASH_IGNAME2 = '/igname', '/ign';
local function handler(msg, editbox)
    if msg == 'get' then
        StaticPopup_Show("IGNORE_NAME")
    end
end
SlashCmdList["IGNAME"] = handler;
 
 
StaticPopupDialogs["IGNORE_NAME"] = {
    text = "",
    button1 = "Close",
    OnShow = function (self, data)
    self.editBox:SetText(GetIgnoreName(GetSelectedIgnore()))
    end,
    timeout = 0,
    whileDead = true,
    hideOnEscape = true,
    preferredIndex = 3,
    hasEditBox = true
}

GetIGName.toc

## Interface: 70200
## Title: GetIGName
## Notes: Puts the name of selected ignored player in an editbox.
## Author: Xardir-Blackmoore
## Version: v0.1

main.lua