An automatic usergroup for banned members

Ok so what I am suggesting is pretty simple but nice to have. I suggest that there is a banned members group. So when you ban someone there name will automatically appear something like white with a black line through it. So instead of going through the hassle of making a group and then putting that user in that group(which mods cannot do that), we can just ban them and there name will automatically show to everyone as banned.

With warning bars you can do this anyway.