The character combination works for me. There's no problem for me at all using it as an alias. However, I do see the difference in the nicks from my browser.

If you enter
Code:
//echo $utfdecode(GÒ‰-Flex)
in your mirc, it will give you G҉-Flex

Edit - you are right. I misunderstood you. I know one way to get around that matter is to use:
Code:
/shrug /say $utfencode(¯\(°_o)/¯)