This is what I mean:
Exhibit 1
Family member responded to Happy New Year message with "Piss off "
Exhibit 2
Annoying person I sadly have to deal with who sends requests for money with smilies and/or slags off other people, followed by a smilie.
I don't think a rubbish representation of a smiling face makes up for being rude or obnoxious, or AIBU?