It's very sad to see people stoop this low to where they have to insult people online. I wonder what goes on in their minds when they do this...nothing I bet. Just a empty void of pride. If someone does this to me I usually just point out all of the flaws about them and watch as they either rage quit hilariously or just give up the ruse. Though if you're not one for either, then well...
"Just ignore and block rather than spam with caps lock."